Category Archives: DNA

IB SL Biology Past Paper 2 Questions - Question 17 [Conservation of DNA sequence during replication]
FACEBOOK: http://www.facebook.com/ibblueprint TWITTER: http://www.twitter.com/ibblueprint POWERPOINTS: http://www.slideshare.net/yangwang123 WEBSITE: http://bio.ibblueprint.com "Explain how...

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IB SL Biology Past Paper 2 Questions - Question 17 [Conservation of DNA sequence during replication] - Video

Enzymes and Proteins involved in DNA replication and their functions
Detailed explanation of all major enzymes/proteins and their function in DNA replication of Prokaryotes and Eukaryotes http://www.biologyexams4u.com/2013/03/the-steps-and-proteins-involved-in-dna.h...

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Enzymes and Proteins involved in DNA replication and their functions - Video

dna solo aa
DNA SOLO AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA.

By: DNA SOLO SERIE A FRANCESCO ENNA

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dna solo aa - Video

Birdie Lewis talks to press after a judge denies bail to Rene Valentin-Matos who was linked to 2009 murder of Lewis' daughter by DNA evidence.

After waiting for justice for nearly five years , Jahmeshia Conners mother came to court Thursday to see with her own eyes the man accused of violently ending the fifth-graders life.

Rene Valentin-Matos had been extradited from a small town in Minnesota and was making his initial appearance in a Cook County courtroom on charges he raped and strangled the 12-year-old in 2009 and sexually assaulted a 26-year-old woman in 2011, both in Chicago.

Jahmeshias mother, Birdie Lewis, said she never lost hope that her daughters killer would be unmasked.

I knew I was going to get me some justice somehow, some way, she told reporters at the Leighton Criminal Court Building after Valentin-Matos had been ordered held without bail. I kept it in Gods hands, and He finally gave me some justice before Mothers Day. The best Mothers Day I could ever have.

Prosecutors revealed in court that DNA recovered from beneath Jahmeshias fingernails was linked to Valentin-Matos, a transient worker who at the time of the murder lived at the church where the girls family worshipped. Police said Valentin-Matos, a father of three grown children, admitted that he knew the girl, but her mother said Thursday that she didnt recognize him.

Prosecutors also said the second rape victim knew Valentin-Matos from the neighborhood and had asked to stay the night at his residence in the Pilsen neighborhood after she had been evicted from her own home in November 2011. Early the first morning there, Valentin-Matos entered the room where she was sleeping and raped her, said Assistant States Attorney Robert Mack.

Both crimes had gone unsolved until a crucial break last January when DNA indicated that the same man committed both Jahmeshias slaying and the rape of the Pilsen woman. With the help of that woman and the dogged efforts of police detectives, police pinpointed Valentin-Matos as the suspect.

But since he had no felony convictions in his background, investigators had no DNA of his to try to match up. Chicago police, however, tracked him down to tiny Cold Spring, Minn., where he was arrested while shoveling snow at a bakery where he worked part-time.

Authorities obtained court permission in Minnesota to take a DNA swab from his mouth, and the results showed he was responsible for both Jahmeshias murder and rape as well as the second sexual assault, Mack said.

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DNA linking suspect to murder recovered from fingernails of 12-year-old victim

Using bacterial cells, scientists have managed to create a 'semi-synthetic organism' whose DNA has six 'letters,' instead of the usual four.

Researchers say that they have successfully incorporated synthetic DNA bases within the genetic material of E. coli cells, and had the cells copy the artificial base pair in their DNA.

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Floyd Romesberg, Associate Professor of Chemistry at the Scripps Research Institute in California and an author of the study published in thejournal Nature says that he and his team have managed to create a "semi-synthetic organism" by integrating the artificially synthesized base pair "into the machinery of life" where thesemi-synthetic component functions alongside the natural components..

First, the team had to engineer base pairs that could be recognized by DNA polymerase, a natural enzyme that replicates DNA. After examining some 300 different analogues, in 2009, researchers zeroed in on two molecules known as d5SICS and dNaM after they observed that in a test tube, these molecules worked very well with DNA polymerase.

After figuring out which molecules would be compatible with the enzyme, the team then attempted to introduce these into a living cell.

What they needed was a "transporter" that could effectively deliver the components one at a time into the cell. "We borrowed the triphosphate transporter from a species of microalgae," says Romesberg.

That was a big breakthrough for us an enabling breakthrough, said Denis A. Malyshev, a member of the Romesberg laboratory who was lead author of the paper, in a press release.

After the tools were in place, the team got down to the actual process of introducing the components into the bacterium.

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Scientists add two new letters to DNA's 'alphabet'

DNA - Reminiscing A Lie (Official Video)
Written and performed by DNA Produced by Kim Entertainment https://itunes.apple.com/us/album/reminiscing/id873328818?i=873331998.

By: Fletcher Rick

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DNA - Reminiscing A Lie (Official Video) - Video

DNA GPS tracking with Dr. Eran Elhaik
It appears Ancestral Productions favorite geneticist Dr. Eran Elhaik has not only demonstrated the genetic mythology of a genetically distinct "Jewish" people: https://www.youtube.com/watch?v=hzGS...

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DNA GPS tracking with Dr. Eran Elhaik - Video

Winx Fairy Dance 2 - Dna Danza La Danza Dalla A Alla Z - Pink Melody
Ecco la coreografia del gruppo Pink Melody della scuola Dna Danza La Danza Dalla A Alla Z di Udine che partecipa al concorso WINX FAIRY DANCE SECOND EDITION! Guarda il video e scatenati a ritmo...

By: Winx Club Italia

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Winx Fairy Dance 2 - Dna Danza La Danza Dalla A Alla Z - Pink Melody - Video

Msp DNA part 9
Host:https://www.youtube.com/channel/UCKSrwmLkJQLomUkxuLXg5-A.

By: delcool Pelcool

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Msp DNA part 9 - Video

Biochemistry - 25 DNA Metabolism - Flashcards
http://xelve.com Biochemistry - 25 DNA Metabolism - Flashcards Learn Biochemistry.

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Biochemistry - 25 DNA Metabolism - Flashcards - Video