Category Archives: Genetic Engineering

It is fair to say that Denis Villeneuves adaption of Frank Herberts classic sci-fi novel Dune has been a critical and commercial success. A sequel, which will cover the second half of the novel, has already been given the green light. A sizable part of the movies success comes from how faithful it is to the source material. After all, Dune is considered one of the greatest sci-fi novels ever written. To think they were qualified to improve on that would have been a phenomenal act of hubris on the part of the screenwriters. For the most part, they avoided that pitfall. That said, the constraints of cinema versus the written word did mean that some of the rich detail packed into Herberts surprisingly short novel did not make it onto the screen. Which is where we come in. Dune is set in a speculative distant future in which humanity has spread out to colonise the stars. Sentient life was never discovered, but there are aliens of the animal or flora kind. By the time the story kicks off, humanity is so far removed from Earth that most have forgotten it ever existed and become natives of the new planets they moved to, planets that are often at odds with one another. Caladan, ruled by the Atreides family, and Giedi Prime, home of the Harkonnens, are two such planets. They are both part of a larger empire ruled from the planet Kaitain, from which House Corrino has ruled for some ten thousand years by the time of the movie.

The Corrinos and Emperor Shaddam are one of the things that didnt make the cut in Villeneuves Dune. References are made to them, and we are told that the Emperor is concerned with how popular Duke Leto Atreides has become and the possibility that he might make a play for the throne. We see the prison planet on which the empires elite troops, the Sardaukar, are trained when the Harkonnen forces are bolstered by the inclusion of these fearsome warriors. This is enough to get the general gist of the plot, though appearances from Shaddam and his court are missed. Which is a pity, for Shaddam is not the one-note villain he might seem and actually quite likes Leto, and his court includes important characters like Princess Irulan and Count Fenring, the latter of which is as much a result of the Bene Gesserit breeding program as our protagonist Paul. That breeding program and the reasoning behind it is another thing that isnt fleshed out as much as it was in the book. That Paul and the Bene Gesserit have super-human abilities is established well, with scenes such as the Gom Jabbar test being adapted in full. But there is more of an explanation as to why humanity came to such a point.

First time viewers might have noticed that the technology in Dune is an odd combination of advanced yet archaic. That they use melee weapons in favor of projectiles is explained in detail by the personal shields deflecting anything that comes towards a wearer too fast. What isnt as well explained is the lack of computerised technology. You would think a society that far in the future would have advanced AI and such, but Dune very much does not. Herbert addressed this in the books. You see, far in the past there were such things. Robots, artificial intelligences and other technologies. But they proved too powerful and rebellious, resulting in a galactic war known as the Butlerian Jihad. This was a time period in which a fellow named Butler did his best John Connor impression and led humanity in a war against the machines. Well, technically John Connor did his best Butler impression, since Dune came first, but I digress. The point is that AI and anything resembling it is strictly outlawed in the Dune setting.

This is why the technology is not as smooth or complex as might be seen in a setting like Star Trek. And it is also part of the reason that groups like the Bene Gesserit have resorted to genetic engineering. In order to replace computers and the other advanced machines that are no longer allowed, humanity has taken steps to change themselves into something that can replace those things. Part of that is the creation of a group called the mentats. We meet Duke Letos mentat, Thufir Hawat, but the movie fails to offer an explanation for who he is and what he does. All we see is a brief scene of his eyes rolling back in his head while he swiftly does some sums for the Duke. There is more that should have been said and seen of him, for not only is Thufir an interesting character whose fate was worth showing, but the mentats themselves are important to the setting. They are essentially the biological replacements for computers, humans who have been conditioned through training, drugs and genetic alteration to give them perfect recall and fast mental processing. The movie did not explain this, or mention that Paul himself has been given mentat training in addition to his training with his mother Jessica and the Atreides war masters.

Another, even bigger omission, is the Spacing Guild itself. This is the organization whose mutated, spice-addicted Engineers have a complete monopoly on space travel. Their prescient abilities allow them to navigate through space without the need of a computer. Naturally, having a monopoly on space travel in an intergalactic empire has made the Spacing Guild massively wealthy and powerful, so much so that they think nothing of making demands of the Emperor himself. That the spice they need is found only on Arrakis, aka Dune, is why the planet is fought over so fiercely. This wasnt given the emphasis in the movie that it was in the books, unfortunately, perhaps leaving viewers confused as to why a mostly barren planet is so desired. In addition, while you might have thought Stellan Skarsgards Baron Harkonnen a disturbing villainunderstandably!you might be surprised to learn that the book version is even worse. He is, after all, an open paedophile, who laments not being able to turn Paul Atreides into his sex slave. Even with these omissions, Dune is still a great movie. But even a great movie can rarely measure up to a great book, so if you liked what you saw and find yourself wanting more you should absolutely read the books. They are packed with even more richly cool sci-fi than youve already seen.

Original post:
What the Dune Movie Didn't Tell You - TVOvermind

The SRM Institute of Science and Technology (SRM IST) has opened applications for admissions to its engineering courses for the academic year 2022. The universityhas begun the registrations for the Joint Engineering Entrance Exam (SRMJEEE) at the official portal - srmist.edu.in.

The online application is for admission to BTech programmes offered across SRM campuses including Chennai (Kattankulathur, Vadapalani, Ramapuram, Tiruchirappalli, and Delhi - NCR Campus - Ghaziabad (UP), SRM University - Sonepat, Haryana and SRM University, AP - Andhra Pradesh.

Also read|WBJEE 2022 Applications to Begin in December, Engineering Entrance in April

Eduction: Candidates must clear the boards with a minimum of 50per cent in aggregate in PCM. For those who wish to pursue, BTechinbiotechnology, biotechnology w/s in genetic engineering, biotechnology w/s in regenerative medicine, and biomedical engineering must clear class 12 with a minimum of 50per cent in aggregate in PCM/PMB/PCB.

Age: Candidates must have attained the age of 16 years and 6 months as of July 31 of the calendar year in which the 12th board examination is to be held.

Step 1: Go to the officialwebsite of SRM IST

Step 2: On the homepage, click on the Registrationlink

Step 3: Enter your name, a valid email id, and mobile number to register yourself

Step 4: Validate the OTP received on the registered mobile number

Step 5: Log in and complete the application form

Step 6: Upload required documents a scanned copy of photograph and signature

Step 7: Pay the application fee

Step 8: Download and take a print out of the filled application form for further use

Read|List of Top Engineering Colleges in India & Abroad

The applicants will have to payan application fee of Rs 1200.Ifany candidate wishes to take SRMJEEE more than one time,he/she will have to pay Rs 600 for each phase.

Candidates will be selected on the basis of the written test. The exam will be held for 2 hours and 30 minutes. It will feature multiple-choice questions (MCQs)from physics, chemistry, mathematics, English, and aptitude. A total of 125 questions will be given. One mark will be provided for each correct answer. There is no negative marking. Meanwhile, candidates who have qualified in IIT JEE Main/SAT will be admitted directly even if the candidate doesnt take SRMJEEE.

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SRMJEEE 2022 Registrations Begin: From Eligibility to Exam Pattern to Steps to Apply - News18

The biomedical field is constantly working to make new medical solutions that can help treat patients with various illnesses and conditions. Today, there are numerous medical solutions used today to help ease medical treatment for patients. These solutions include new medical devices, implants, software used to run medical equipment, and information technology systems.

The following are some of the most popular medical technologies that are used today:

Information technologies are another type of technology used today in medicine. For example, imaging systems let doctors examine patients like never before by allowing them to see inside a persons body without performing surgery first. One famous example of this type of medical solution is 3-D imaging software that uses pictures taken with an X-ray machine to give doctors a model to track health changes over time. Another example includes using information technology systems to control medical equipment or devices through smartphone computer programming or apps.

This type of technology allows doctors to use medical equipment with greater accuracy and helps make their work easier. For example, different types of imaging software help provide more transparent images for radiologists when they read X-rays and MRIs. This helps with making a diagnosis quicker. Thats why most hospitals would prefer to work with Wound Care, a web-based EHR tool. Such tools help record patient vitals and wound assessments to track each patients progress and provide better treatment.

These products can be used as medical solutions for people who want to check their health but dont want to visit a doctors office. Wearable health technologies include everything from smartwatches that measure heart rate and blood pressure functions to fitness trackers that help wearers monitor daily activity levels. Even Google has made its smart contact lenses that can track glucose levels for people with diabetes. However, these devices are designed specifically for individuals suffering from chronic diseases such as arthritis or Parkinsons disease in many cases.

Synthetic biology and genetic engineering tools are a technology used to treat illnesses or conditions that affect organs in the body. For example, if a patient has heart disease, they may need a new heart valve. In this case, doctors can use synthetic biology and genetic engineering tools to create a different kind of heart valve from those typically made from cow tissue. These valves have been tested on animals, and now researchers are testing them on humans as well.

Laboratory-grown organs are another medical solution used to help treat patients who need transplants for certain diseases or conditions that may have caused organ failure. A typical example is how stem cells taken from bone marrow can be turned into blood cells and then used to help treat patients with leukemia. Other types of laboratory-grown organs being tested in clinical trials today include partially functional livers and lungs grown from stem cells.

Medical equipment is another technology doctors can use when treating patients. For example, medical imaging devices like CT scanners and MRI machines help provide images of the bodys internal structures for diagnosis so doctors can see problems most other methods cannot detect. Another type of medical equipment includes surgical robots that can be moved by a computer program to perform surgery on a patient. This reduces the need for an incision since some procedures only require small openings or ones that heal very well without stitches or staples closing them up afterward.

Stem cells and stem cell therapies are a type of medical solution used to treat patients who have conditions that can be life-threatening or cause other severe complications. For example, patients with leukemia may need transplanted blood cells from healthy donors. In this case, doctors can use stem cells to develop those types of blood cells that will provide the best chance of curing the patients cancer without harming their body.

Other examples include using cord blood stem cells from newborns to make different kinds of healthy blood and immune system cells for older children and adults with certain diseases or using skin or other non-embryonic stem cells to make insulin-producing pancreatic beta cells for people diagnosed with diabetes Type 1.

Overall, biomedical technologies have been beneficial in making it easier for doctors to diagnose and treat their patients. Thanks to these technologies, many patients can live long, healthy lives with their illnesses or conditions under control. As technology continues advancing over time, even more, advanced solutions will come out, which should further help improve patient care. However, the use of new medical solutions must be approved by a doctor before being used on a patient.

More here:
What Are New Medical Solutions That Can Help Treat Patients? - iLounge

Overview of Biotechnology

Biotechnology is the use of biological techniques and engineered organisms to make products or plants and animals that have desired traits.

Describe the historical development of biotechnology

Biotechnology: Brewing (fermentation of beer) was an early application of biotechnology.

People have used biotechnology processes, such as selectively breeding animals and fermentation, for thousands of years. Late 19th and early 20th century discoveries of how microorganisms carry out commercially useful processes and how they cause disease led to the commercial production of vaccines and antibiotics. Improved methods for animal breeding have also resulted from these efforts. Scientists in the San Francisco Bay Area took a giant step forward with the discovery and development of recombinant DNA techniques in the 1970s. The field of biotechnology continues to accelerate with new discoveries and new applications expected to benefit the economy throughout the 21st century.

In its broadest definition, biotechnology is the application of biological techniques and engineered organisms to make products or modify plants and animals to carry desired traits. This definition also extends to the use of various human cells and other body parts to produce desirable products. Bioindustry refers to the cluster of companies that produce engineered biological products and their supporting businesses. Biotechnology refers to the use of the biological sciences (such as gene manipulation), often in combination with other sciences (such as materials sciences, nanotechnology, and computer software), to discover, evaluate and develop products for bioindustry. Biotechnology products have made it easier to detect and diagnose illnesses. Many of these new techniques are easier to use and some, such as pregnancy testing, can even be used at home. More than 400 clinical diagnostic devices using biotechnology products are in use today. The most important are screening techniques to protect the blood supply against contamination by AIDS and the hepatitis B and C viruses.

Genetic engineering means the manipulation of organisms to make useful products and it has broad applications.

Describe the major applications of genetic engineering

Genetic engineering, also called genetic modification, is the direct manipulation of an organisms genome using biotechnology.

New DNA may be inserted in the host genome by first isolating and copying the genetic material of interest, using molecular-cloning methods to generate a DNA sequence; or by synthesizing the DNA, and then inserting this construct into the host organism. Genes may be removed, or knocked out, using a nuclease.

Genetically manipulated mice: Laboratory mice are genetically manipulated by deleting a gene for use in biomedical research.

Gene targeting is a different technique that uses homologous recombination to change an endogenous gene, and can be used to delete a gene, remove exons, add a gene, or introduce point mutations. Genetic engineering has applications in medicine, research, industry and agriculture and can be used on a wide range of plants, animals and microorganisms.

Genetic engineering has produced a variety of drugs and hormones for medical use. For example, one of its earliest uses in pharmaceuticals was gene splicing to manufacture large amounts of insulin, made using cells of E. coli bacteria. Interferon, which is used to eliminate certain viruses and kill cancer cells, also is a product of genetic engineering, as are tissue plasminogen activator and urokinase, which are used to dissolve blood clots.

Another byproduct is a type of human growth hormone; its used to treat dwarfism and is produced through genetically-engineered bacteria and yeasts. The evolving field of gene therapy involves manipulating human genes to treat or cure genetic diseases and disorders. Modified plasmids or viruses often are the messengers to deliver genetic material to the bodys cells, resulting in the production of substances that should correct the illness. Sometimes cells are genetically altered inside the body; other times scientists modify them in the laboratory and return them to the patients body.

Since the 1990s, gene therapy has been used in clinical trials to treat diseases and conditions such as AIDS, cystic fibrosis, cancer, and high cholesterol. Drawbacks of gene therapy are that sometimes the persons immune system destroys the cells that have been genetically altered, and also that it is hard to get the genetic material into enough cells to have the desired effect.

Many practical applications of recombinant DNA are found in human and veterinary medicine, in agriculture, and in bioengineering.

Describe the advances made possible by recombinant DNA technology

Recombinant DNA technology is the latest biochemical analysis that came about to satisfy the need for specific DNA segments. In this process, surrounding DNA from an existing cell is clipped in the desired amount of segments so that it can be copied millions of times.

Construction of recombinant DNA: A foreign DNA fragment is inserted into a plasmid vector. In this example, the gene indicated by the white color is inactivated upon insertion of the foreign DNA fragment.

Recombinant DNA technology engineers microbial cells for producing foreign proteins, and its success solely depends on the precise reading of equivalent genes made with the help of bacterial cell machinery. This process has been responsible for fueling many advances related to modern molecular biology. The last two decades of cloned-DNA sequence studies have revealed detailed knowledge about gene structure as well as its organization. It has provided hints to regulatory pathways with the aid of which gene expression in myriad cell types is controlled by the cells, especially in those organisms having body plan with basic vertebrae structure.

Recombinant DNA technology, apart from being an important tool of scientific research, has also played a vital role in the diagnosis and treatment of various diseases, especially those belonging to genetic disorders.

Some of the recent advances made possible by recombinant DNA technology are:

1. Isolating proteins in large quantities: many recombinant products are now available, including follicle stimulating hormone (FSH), Follistim AQ vial, growth hormone, insulin and some other proteins.

2. Making possible mutation identification: due to this technology, people can be easily tested for mutated protein presence that can lead to breast cancer, neurofibromatosis, and retinoblastoma.

3. Hereditary diseases carrier diagnosis: tests now available to determine if a person is carrying the gene for cystic fibrosis, the Tay-Sachs diseases, Huntingtons disease or Duchenne muscular dystrophy.

4. Gene transfer from one organism to other: the advanced gene therapy can benefit people with cystic fibrosis, vascular disease, rheumatoid arthritis and specific types of cancers.

Bacterial genetics can be manipulated to allow for mammalian gene expression systems established in bacteria.

Describe the sequence of events in a genetically engineered expression system

Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product. These products are often proteins and are produced after the process of translation. An expression system that is categorized as a genetic engineering product is a system specifically designed for the production of a gene product of choice. This is normally a protein, although may also be RNA, such as tRNA or a ribozyme.

The genetically engineered expression system contains the appropriate DNA sequence for the gene of choice which is engineered into a plasmid that is introduced into a bacteria host. The molecular machinery that is required to transcribe the DNA is derived from the innate and naturally occurring machinery in the host. The DNA is then transcribed into mRNA and then translated into protein products.

In a genetically engineered system, this entire process of gene expression may be induced depending on the plasmid used. In the broadest sense, mammalian gene expression includes every living cell but the term is more normally used to refer to expression as a laboratory tool. An expression system is therefore often artificial in some manner. Viruses and bacteria are an excellent example of expression systems.

The oldest and most widely used expression systems are cell-based. Expression is often done to a very high level and therefore referred to as overexpression. There are many ways to introduce foreign DNA to a cell for expression, and there are many different host cells which may be used for expression. Each expression system also has distinct advantages and liabilities.

Expression systems are normally referred to by the host and the DNA source or the delivery mechanism for the genetic material. For example, common bacterial hosts are E.coli and B. subtilis. With E. coli, DNA is normally introduced in a plasmid expression vector. The techniques for overexpression in E. coli work by increasing the number of copies of the gene or increasing the binding strength of the promoter region so as to assist transcription.

Bacterial Flora: E. coli is one of the most popular hosts for artificial gene expression.

Genetic engineering enables scientists to create plants, animals, and microorganisms by manipulating genes.

Explain the advantages and disadvantages of producing genetically engineered proteins in bacteria

The first successful products of genetic engineering were protein drugs like insulin, which is used to treat diabetes, and growth hormone somatotropin. These proteins are made in large quantities by genetically engineered bacteria or yeast in large bioreactors. Some drugs are also made in transgenic plants, such as tobacco. Other human proteins that are used as drugs require biological modifications that only the cells of mammals, such as cows, goats, and sheep, can provide. For these drugs, production in transgenic animals is a good option. Using farm animals for drug production has many advantages because they are reproducible, have flexible production, are easily maintained, and have a great delivery method (e.g. milk).

Synthetic Insulin: human insulin produced by recombinant DNA technology.

Recombinant DNA technology not only allows therapeutic proteins to be produced on a large scale but using the same methodology protein molecules may be purposefully engineered. Genetic modifications introduced to a protein have many advantages over chemical modifications. Genetically engineered entities are biocompatible and biodegradable. The changes are introduced in 100% of the molecules with the exclusion of rare errors in gene transcription or translation. The preparations do not contain residual amounts of harsh chemicals used in the conjugation process. Bacterial expression systems, due to their simplicity, are often not able to produce a recombinant human protein identical to the naturally occurring wild type. Bacteria did not develop sophisticated mechanisms for performing post-translational modifications that are present in higher organisms. As a consequence, an increasing number of protein therapeutics is expressed in mammalian cells. However the low cost and simplicity of cultivating bacteria is an unbeatable advantage over any other expression system and therefore E. coli is always a preferable choice both on a lab scale and in industry.

Many mammalian proteins are produced by genetic engineering. These include, in particular, an assortment of hormones and proteins for blood clotting and other blood processes. For example, tissue plasminogen activator (TPA) is a blood protein that scavenges and dissolves blood clots that may form in the nal stages of the healing process. TPA is primarily used in heart patients or others suffering from poor circulation to prevent the development of clots that can be life-threatening. Heart disease is a leading cause of death in many developed countries, especially in the United States, so microbially produced TPA is in high demand. In contrast to TPA, the blood clotting factors VII, VIII, and IX are critically important for the formation of blood clots. Hemophiliacs suffer from a deciency of one or more clotting factors and can therefore be treated with microbially produced clotting factors. In the past hemophiliacs have been treated with clotting factor extracts from pooled human blood, some of which was contaminated with viruses such as HIV and hepatitis C, putting hemophiliacs at high risk for contracting these diseases. Recombinant clotting factors have eliminated this problem.

Excerpt from:
Genetic Engineering Products | Boundless Microbiology

Genetic engineering means the manipulation of organisms to make useful products and it has broad applications.

Genetic engineering, also called genetic modification, is the direct manipulation of an organisms genome using biotechnology.

New DNA may be inserted in the host genome by first isolating and copying the genetic material of interest, using molecular-cloning methods to generate a DNA sequence; or by synthesizing the DNA, and then inserting this construct into the host organism. Genes may be removed, or knocked out, using a nuclease.

Gene targeting is a different technique that uses homologous recombination to change an endogenous gene, and can be used to delete a gene, remove exons, add a gene, or introduce point mutations. Genetic engineering has applications in medicine, research, industry and agriculture and can be used on a wide range of plants, animals and microorganisms.

Genetic engineering has produced a variety of drugs and hormones for medical use. For example, one of its earliest uses in pharmaceuticals was gene splicing to manufacture large amounts of insulin, made using cells of E. coli bacteria. Interferon, which is used to eliminate certain viruses and kill cancer cells, also is a product of genetic engineering, as are tissue plasminogen activator and urokinase, which are used to dissolve blood clots.

Another byproduct is a type of human growth hormone; its used to treat dwarfism and is produced through genetically-engineered bacteria and yeasts. The evolving field of gene therapy involves manipulating human genes to treat or cure genetic diseases and disorders. Modified plasmids or viruses often are the messengers to deliver genetic material to the bodys cells, resulting in the production of substances that should correct the illness. Sometimes cells are genetically altered inside the body; other times scientists modify them in the laboratory and return them to the patients body.

Since the 1990s, gene therapy has been used in clinical trials to treat diseases and conditions such as AIDS, cystic fibrosis, cancer, and high cholesterol. Drawbacks of gene therapy are that sometimes the persons immune system destroys the cells that have been genetically altered, and also that it is hard to get the genetic material into enough cells to have the desired effect.

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7.23B: Applications of Genetic Engineering - Biology ...

by Allison Bakerfigures by Lillian Horin

The Arctic apple is the juiciest newcomer to produce aisles. It has the special ability to resist browning after being cut (Figure 1), which protects its flavor and nutritional value. Browning also contributes to food waste by causing unappealing bruising on perfectly edible apples. Food waste, especially for fruits and vegetables, is a major problem worldwide; nearly half of the produce thats grown in the United States is thrown away, and the UK supermarket Tesco estimates that consumer behavior significantly contributes to the 40% of its apples that are wasted. Therefore, Arctic apples not only make convenient snacks, but they also might be able to mitigate a major source of food waste.

While a non-browning apple sounds great, how exactly was this achieved? Arctic apples are genetically engineered (GE) to prevent browning. This means that the genetic material that dictates how the apple tree grows and develops was altered using biotechnology tools. But before learning about the modern science used to make Arctic apples, lets explore how traditional apple varieties are grown.

Harvesting tasty apples is more complicated than simply planting a seed in the ground and waiting for a tree to grow. In particular, its difficult to predict what an apple grown from a seed will look and taste like because each seed contains a combination of genetic material from its parents. But farmers can reliably grow orchards of tasty apples by using an ancient technique called grafting. After a tree that produces a desirable apple is chosen, cuttings of that original tree are grafted, or fused, onto the already-established roots of a donor tree, called rootstock. The cuttings then grow into a full-sized tree that contains the exact same genetic material as the original tree. As a result, each tree of a specific apple variety is a cloned descendant of the original tree, and thus produce very similar apples.

New apple varieties emerge when genetic changes are allowed to occur. Traditionally, new apples are produced by cross-breeding existing apple varieties. This reshuffles the genetic makeup of seeds, which are then planted to see if they grow into trees that produce delicious new apples. On the other hand, Arctic apples are created by making a targeted change to the genetic material of an existing variety (more on this later). The advantage of using genetic engineering over traditional breeding methods is that scientists can efficiently make precise improvements to already-beloved apple varietiesin contrast, traditional cross-breeding is much more random and difficult to control.

Insight into the molecular causes of apple browning guided the genetic alteration that made Arctic apples. Apples naturally contain chemicals known as polyphenols that can react with oxygen in the air to cause browning. This reaction wont occur, however, without the help of polyphenol oxidase (PPO) enzymes, which bring polyphenols and oxygen together in just the right way. PPO enzymes and polyphenols are normally separated into different compartments in apple cells, which is why the inside of a fresh apple is white or slightly yellow-green in color. But these structures are broken when the fruit is cut or crushed, allowing PPOs to interact with polyphenols and oxygen to drive the browning reaction(Figure 2). This process occurs in all apples, but some varieties are less susceptible than others due to factors like lower amounts of PPOs or polyphenols. Common household tricks can also delay browning by a few hours by interfering with the PPO reaction, but no method prevents it completely or indefinitely. Knowing that PPOs were responsible for browning, researchers thought about blocking the production of these enzymes with genetic tools to create non-browning apples.

Genetic material is stored in our DNA and divided into functional units called genes. The genes are read by copying the DNA sequence into a related molecule called RNA. The RNA copy functions as a blueprint that instructs the cell how to build the product for that gene, which is called a protein. The production of PPO enzymes, therefore, can be blocked by simply removing their RNA blueprints. To do so, researchers used a tool from molecular biology called RNA interference (RNAi). RNAi is a natural biological process that recognizes and destroys specific RNA structures. Biologists can use RNAi to lower PPO levels by introducing RNA sequences that cause the degradation of PPO RNA. Using this technique, researchers developed an anti-PPO gene that makes anti-PPO RNA, which destroys the PPO RNA before it can be used to make PPO enzymes.

Once scientists created the anti-PPO gene, they needed to safely introduce it into the apple genome. To make a variety called the Arctic Golden, researchers began with Golden Delicious apple buds and inserted an engineered piece of genetic material called a transgene that contained the anti-PPO gene. After confirming that the plant received the transgene, the saplings were then allowed to grow into mature trees, one of which produced the apple that is now known as the Arctic Golden.

After over a decade of research, regulatory agencies in the United States and Canada like the FDA and USDA recently approved Arctic apples for human consumption. Accumulated evidence shows that Arctic apple trees and fruit are no different from their traditional counterparts in terms of agricultural and nutritional characteristics. On the molecular level, the transgene genetic material present in Arctic apples is quickly degraded by your digestive system to the point where its indistinguishable from that found in traditional apples. The only new protein in Arctic apple treesa protein called NPTII thats used to confirm that the genetic engineering was successfulwas not only undetectable in their apples, but it has also been evaluated and deemed nontoxic and non-allergenic by the FDA.

Yet some anti-GMO groups continue to protest the approval of Arctic apples, arguing that unforeseen consequences of the genetic alteration could impact safety. Its true that its impossible to predict and disprove every possible consequence of a genetic change. But a recent review by the National Academies of Science that covers decades of published research found no convincing evidence that GE crops have negatively impacted human health or the environment. While its important to rigorously test all new crops that are developed, GE crops should not be considered inherently more dangerous than their traditionally-bred relatives.

So whats next for the Arctic apple? It takes several years for new apple trees to grow and literally bear fruit, so itll take time for non-browning apples to expand to supermarkets throughout the US. Currently, Arctic Goldens are only available in bags of pre-sliced apples in select US cities, but Arctic versions of Granny Smith and Fuji apples have received USDA approval, and Arctic Galas are in development. If commercially successful, non-browning apples could help to combat rampant food waste one slice at a time.

Allison Baker is a second-year Ph.D. student in Biological and Biomedical Sciences at Harvard University.

Cover image credit:Okanagan Specialty Fruits Inc.

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Arctic Apples: A fresh new take on genetic engineering ...

Few food companies over the past decade have voluntarily promoted the use of genetic engineering on their labels. After all, organizations such as the Non-GMO Project have profited heavily by demonizing the use of biotechnology in agriculture and food. But one company that stood above the fray and celebrated this sustainable science was Soylent.

The California-based company specializes in ready-to-drink meals that are built around soy protein a 14-ounce bottle clocks in at about 400 calories and is available in a wide variety of flavors, from vanilla and strawberry to chocolate mint and cafe mocha. Ive been a customer for several years, drawn not only by the taste and convenience of their product but also by the fact that Soylent had long proudly marketed a pro-GMO stanceand emblazoned their bottles with a Produced with genetic engineering statement.

That means a lot to someone like me who sees the adoption of science and sustainable technologies vital to advancing our food system, to overhauling our use of crop inputs, and to increasing efficiencies along the food chain. The use of genetic engineering in food is a viable and exciting way forward for our industry and reckless opponents of this science like the Non-GMO Project should be damned.

So, its been with some concern that my last several shipments of Soylent drinks have come in new packaging that has removed the previous mention of genetic engineering. The pro-GMO approach had been instrumental to their marketing, and it wasnt long ago that then-CEO Bryan Crowley observed that the public was becoming more accepting of genetic engineering, and that the the pendulum is swinging in favor of the science.

But to look at Soylent now, under CEO Demir Vangelov, all mentions of genetic engineering or GMOs have been scrubbed from their website the companys blog post that was titled Proudly Made With GMOs has been taken down, as has the Soylent Help Center page titled Why is Soylent made with GMOs.

Some new packaging incorporates the U.S. Food and Drug Administrations bioengineered logo, albeit its so small as to be virtually unreadable (especially the actual bioengineered wording on the logo). Yet that step feels forced in comparison to the wording theyve voluntarily had on their products in the past. And, unfortunately, Soylent hasnt used the FDAs logo on all of its varieties this year.

The company still claims to be leading the charge in innovation, but their actions regarding biotechnology dont bear that out.

Communities have been taking notice of this unfortunate labeling change, too. A Reddit thread from early 2021 pointed out the removal of the wording, with most of the more than 100 comments lamenting the decision and criticizing Soylent.

One poster emphatically said: Give me my GMOs!/You know whos against GMOs? Anti-vaxers, flat-earthers, qannon crackheads, and anti-science idiots.

Other comments further show support for science, such as: GMO is class though, its literally super food, and GMO foods are good stuff, theyve removed carcinogens from potatoes. Made crops more resilient to different climates. They use less pesticide, drought resistant.

The overarching feeling from the Reddit thread is that Soylent is wilting away from sound science and dumbing down their approach in order to make a profit even if the company still uses genetically engineered soybeans without disclosing it as prominently.

I reached out to Soylent multiple times through social media and their website, as well as via their marketing department, to get an explanation or more insight into what was going on, but like on the companys platforms, GMOs seem to be a topic that no one there is willing to discuss.

This should be a concern. Generation Z (those born in the mid-to-late 90s) has shown itself to be more open to food technologies than any other generation, which gives this up-and-coming consumer base a lot of power in the food market moving forward. Additionally, many measures show that the fear and opposition to GMOs have been waning, and public sentiment has moved on to topics such as lab-grown meat and farmings role in the climate debate.

That makes the timing of Soylents shift all that much more perplexing. Soylent weathered the worst of the social storm around GMOs through the 2010s, yet now, theyre actively regressing the gains and acceptance that had emerged.

After all, even Crowley, the former CEO, said that its not about being pro-GMO, its about being pro-science.

And when companies such as General Mills or youth organizations such as the Girl Scouts can embrace biotechnology as the most viable path forward for a growing population, its particularly stinging that Soylent shies from its roots and fecklessly gives fresh ammunition to opponents of food tech.

Ryan Tipps is the managing editor for AGDAILY. He has covered farming since 2011, and his writing has been honored by state- and national-level agricultural organizations.

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Have biotech advocates lost Soylent as an ally in the food industry? - AGDAILY

Yi Li, professor of plant science in the College of Agriculture, Health, and Natural Resources is working on a new $500,000 Biotechnology Risk Assessment Research Grant (BRAG) from the USDA/NIFA to study a genetic editing technique in tomato plants.

Genetically engineered organisms are becoming increasingly popular given their potential applications to improve the food supply. Gene editing allows scientists to manipulate an organisms DNA, leading to produce that stays fresher longer, resists pests and viruses, or has higher nutritional content.

One common method of gene editing is manipulating DNA methylation. DNA methylation is the process by which methyl groups are added to a DNA molecule. This changes the activity of that DNA segment without changing the DNA itself. Methylation can suppress or promote the expression of certain genes and the proteins they code for.

Unstudied side effectsThis promising gene-editing technique could improve crops on a large scale. However, the potential unintended side effects of this process are not well-studied, hindering its potential agricultural applications.

Li will specifically look at CRISPR/dCas-mediated DNA methylation in tomatoes. Research on this technique has shown there are some off-target effects, or methylation changes to parts of the genome scientists were not intentionally changing, but no one has yet characterized what these effects are, creating a significant knowledge gap Li is now looking to fill.

Li will compare this methylation technique to genetic transformation, another gene-editing technique. Genetic transformation differs from DNA methylation because it involves introducing foreign DNA into the plants genome, rather than working on changing the expression of its own. Li will compare these two gene-editing techniques to more conventional growing techniques without gene editing.

Li will examine the DNA methylation, RNA sequences, fruit quality, and other observable characteristics for each method. This work will directly address the BRAG Programs priority to gain information about the types and frequencies of nucleic acid changes various genetic engineering techniques introduce into important crops, like tomatoes.

This work will also support the BRAG program goal of providing regulatory agencies with the knowledge to make scientifically informed decisions regarding genetically engineered organisms to protect consumers and the environment. This aspect of the project will be largely carried out by co-principal investigator, Stacey Stearns. Stearns is a communications specialist at UConn Extension.

The knowledge generated from this study will aid plant breeders practicing DNA methylation editing in crops and facilitate the policy- and decision-making process at federal regulatory agencies, Li says.

Lis project includes a public education component. Li and his team will create and share articles, websites, videos, and presentations with the general public.

This outreach will help the public better understand gene-editing technology and its applications for agriculture. Education about genetic engineering can help dispel misinformation and misunderstandings about gene editing.

For more information:University of Connecticutwww.uconn.edu

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Studying the unintended effects of gene editing in tomatoes - hortidaily.com

By Gege Li

Some people dislike the idea of eating genetically modified foods

Tony Savino/Corbis via Getty Images

Book

Life As We Made It

Beth Shapiro

LOOK around you, and the results of humanitys time on Earth are plain to see. Our species has been changing and refining the environment for generations. Landscapes and habitats that we take for granted as natural would look and behave very differently if humans hadnt come on the scene and thats before you factor in our effects on other species.

In Life As We Made It, Beth Shapiro, a professor of ecology and evolutionary biology at the University of California, Santa Cruz, explores the ways that humans have transformed the world around us. In doing so, we have taken the reins of not only our own evolution, but also that of many other species, for better or worse.

Shapiro travels back in time to when our ancestors first learned how to break the rules of nature and follows our environmental tinkering to the present day, where the rise of new biotechnologies is giving us more power and influence than ever before.

The first part of the book, The Way It Is, looks at how we began figuring out ways to change our environment rather than letting it change us. At first, this was unintentional. But 50,000 years ago, we made a pivotal transition from existing alongside other species to becoming apex predators, then domesticators, farmers and innovators. This was an important shift because it let us direct our own evolutionary path. It meant that those who may not have survived previously could live long enough to pass on their genes.

This, says Shapiro, is how we became different, unquestionably, from every other species that lives or has ever lived on Earth. This is what it means to be human.

She draws on a variety of influences to investigate this idea, from our ancestors interactions with other hominins, such as Neanderthals, and mass extinctions throughout history that were probably caused at least partly by humans spreading across the planet, overturning ecosystems as we went.

The second part of the book, The Way It Could Be, casts a spotlight on arguably the most significant point in human history so far: the advent of technologies that let us edit genomes directly. This has allowed us to engineer desired traits into organisms that benefit us, and has opened up unprecedented realms of possibility to reroute evolution as we please. With such methods, we have the power to edit out diseases, save endangered species from extinction, develop more sustainable materials, remove pollutants from oceans and much more besides. With synthetic biology, we no longer have to remain within the bounds of what we can imagine, writes Shapiro.

We probably shouldnt have free rein with new gene-editing technology with it comes responsibility

We probably shouldnt allow ourselves free rein with this new technology with it comes the responsibility to regulate the processes and resulting creations, and to decide when to use it, and whether it should be done at all.

On this last point, Shapiro argues that decades of misinformation and sensationalism around genetically modified organisms, as well as fears of whether we should be playing God, have led to public mistrust and unease. She calls this a knee-jerk yuck factor and says it is a significant barrier to realising the full potential of genetic engineering.

Shapiro makes a strong case that, given the pressing issues we face today a growing global population, climate change and biodiversity loss we will increasingly need to look to these tools if our species and others are to survive and thrive. We cant both maintain the comfortable randomness of evolution and at the same time propel our world toward a defined future, she says.

While that is an undoubtedly important conversation, this is where Life As We Made It starts to stray slightly from its aim of exploring human innovation. For me, the book is most revealing when it considers how we have changed nature through the lens of our past interactions with other species, sometimes simply because we worked out how to breed different animals and plants to our advantage.

Nonetheless, the book provides a detailed exploration of some of the most influential technologies of our time. It also offers a tantalising glimpse of what might be in store in the future, when humanity starts to mix things up all over again.

More on these topics:

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Life As We Made It review: Should we go all in on gene-editing tech? - New Scientist

Swiss sports brand On leads supply chain coalition to reshape carbon waste into running shoes

Main Facts:

- On announces CleanCloud - a sustainability initiative using carbon emissions to create foam for running shoes.

- On is moving away from petroleum-based resources and is reshaping carbon waste into EVA foam.

- On is the first company in the footwear industry to explore carbon emissions as a primary raw material for a shoe bottom unit.

- On is partnering with LanzaTech and Borealis, two of the most innovative companies in biochemicals, process, and polymer innovation.

ZURICH, Nov. 5, 2021 /PRNewswire/ -- Swiss sports brand On today announces a move away from petroleum-based resources by creating a new foam material called CleanCloud, made using carbon emissions as a raw material. On is the first company in the footwear industry to explore carbon emissions as a primary raw material for a shoe bottom unit, specifically EVA (ethylene vinyl acetate) foam, that could also be used in other shoe parts and products in the future.

CleanCloud Infographic by On

On is convinced that innovation is pivotal to cutting greenhouse gas emissions. CleanCloud is the result of four years of dedicated work, which began with finding the best possible partners. We are adopting a collaborative approach to overcome the challenges of connecting these technologies at commercial scale.

"It's a win-win situation: we are capturing emissions before they pollute our atmosphere and are at the same time moving away from fossil-based materials," explains Caspar Coppetti, Co-Founder and Executive Co-Chairman of On. "Innovation is at the heart of our brand, and after four years of intense research, we are very proud to announce this supply chain coalition with our world-class partners LanzaTech and Borealis."

CleanCloud is the result of a partnership with some of the most innovative companies in biochemicals and plastics innovation, including LanzaTech and Borealis. LanzaTech is using a combination of cutting-edge genetic engineering, state-of-the-art artificial intelligence, and innovations in mechanical and chemical engineering to manufacture chemicals using a process that soaks up carbon rather than emitting it.

Story continues

"We are showing the world what is possible when we rethink how we source, use and dispose of carbon," says Jennifer Holmgren, CEO of LanzaTech. "By converting pollution to products, we can see that someday everything in our daily lives will come from recycled carbon. We are excited to be on this journey with On and Borealis to bend the carbon curve, keep our skies blue, and create a sustainable future for all."

Borealis is a leading provider of advanced, circular and renewable plastic solutions and essential in creating high-performance, easy-to-process EVA foam for CleanCloud. This collaboration allows Borealis to further advance its journey in carbon and plastics circularity, and is fully in line with its EverMinds ambition.

Lucrce Foufopoulos, Borealis Executive Vice President Polyolefins, Innovation & Circular Economy Solutions: "Borealis is thrilled to be part of the unique, first-of-its-kind CleanCloud initiative. With our creative partners On and Lanzatech, we are proud to co-create circularity in carbon, and decouple plastic from its reliance on fossil-feedstock. Through innovation and collaboration, we continue re-inventing for more sustainable living."

This is how it works: Technology from LanzaTech captures carbon monoxide emitted from industrial sources like steel mills or emissions from landfill sites before being released into the atmosphere. Once captured, these emissions enter a patented fermentation process. Thanks to specially selected bacteria, the carbon rich gas ferments naturally and is converted to liquid ethanol by the bacteria. This natural fermentation process is similar to that of conventional alcohol production e.g., beer brewing. The ethanol is then dehydrated to create ethylene, which is then polymerized by Borealis to become EVA (a copolymer of ethylene vinyl acetate) the versatile and lightweight material that On starts working with to create a performance foam for shoes.

This is the first major announcement from Swiss brand On following its successful public listing at the New York Stock Exchange in mid-September. On is known for its innovation in the running shoe industry and has become a proven pioneer in sustainable material innovation.

The overall goal is to exchange all bottom units from On shoes currently made from EVA with CleanCloud. This includes the whole Cloud range, THE ROGER franchise collection and a part of the active lifestyle assortment.

Learn more about On's sustainability journey in the "ON Impact Progress Report".

High-res images are available via this link.

About On

On was born in the Swiss Alps with one goal: to revolutionize the sensation of running by empowering all to run on clouds. Eleven years after market launch, On delivers industry-disrupting innovation in premium footwear, apparel, and accessories for high-performance running, outdoor, and all-day activities. Fueled by customer recommendation, On's award-winning CloudTec innovation, purposeful design, and groundbreaking strides in sportswear's circular economy have attracted a fast-growing global fan base inspiring humans to explore, discover and dream on.

On is present in more than 60 countries globally and engages with a digital community on http://www.on-running.com.

About Borealis

Borealis is one of the world's leading providers of advanced and circular polyolefin solutions and a European market leader in base chemicals, fertilizers and the mechanical recycling of plastics. We leverage our polymers expertise and decades of experience to offer value adding, innovative and circular material solutions for key industries. In re-inventing for more sustainable living, we build on our commitment to safety, our people and excellence as we accelerate the transformation to a circular economy and expand our geographical footprint.

With head offices in Vienna, Austria, Borealis employs 6,900 employees and operates in over 120 countries. In 2020, Borealis generated EUR 6.8 billion in sales revenue and a net profit of EUR 589 million. OMV, the Austria-based international oil and gas company, owns 75% of Borealis, while the remaining 25% is owned by a holding company of the Abu-Dhabi based Mubadala. We supply services and products to customers around the globe through Borealis and two important joint ventures: Borouge (with the Abu Dhabi National Oil Company, or ADNOC, based in UAE); and Baystar (with TotalEnergies, based in the US).

http://www.borealisgroup.com | http://www.borealiseverminds.com

About LanzaTechLanzaTech harnesses the power of biology and big data to create climate-safe materials and fuels. With expertise in Synthetic biology, bioinformatics, Artificial Intelligence and Machine Learning coupled with engineering, LanzaTech has created a platform that converts waste carbon into new everyday products that would otherwise come from virgin fossil resources. LanzaTech's first commercial scale gas fermentation plant has produced over 27M gallons of ethanol which is the equivalent of keeping over 130,000 metric tons of CO2 from the atmosphere. A second faclity is operating in China, with additional plants under construction globally. LanzaTech is based in Illinois, USA and employs more than 200 people. Further information is available at http://www.lanzatech.com.

On Logo (PRNewsfoto/On)

Cision

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SOURCE On Inc.

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On announces CleanCloud - turning carbon emissions into running shoes in cooperation with LanzaTech and Borealis - Yahoo Finance