Category Archives: DNA

DnA Clan: Possible Intro?
Hey guys whats up and this could be our possible intro! So what do you think? Leave a comment and like below and subscribe for more! Getting capture card soon so will be uploading game plays soon!

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by JB Clark/NEMS Daily Journal Northeast Mississippi Daily Journal

Dr. Henry Outlaw discusses the basic structure of DNA during a lecture Saturday morning at the Lee County Library about DNA and how it can be used in genealogy research. (LAUREN WOOD | DAILY JOURNAL)

But now that research doesnt need to stop. Dr. Henry Outlaw, retired Delta State University chemistry department chairman and genealogy hobbyist, said that is when DNA can become helpful.

There are many companies that test DNA and store it in databases for people interested in tracing their lineage.

DNA testing became a tool for use in genealogy in about 2000, Outlaw told the North Mississippi Historical and Genealogical Society on Saturday morning at the Lee County Library. There are many test types and many competing testing laboratories. The trick is knowing what each test means. If you take the wrong test, youll get the wrong results.

Outlaw said his goal was to help the society understand the terminology of DNA testing so they could use the testing services in an informed way.

The DNA testing services send a swab the tester will use to scrape cells out of his or her mouth and then mail back. Once the service tests the swab, the company will send back results and store the testers DNA, with permission.

Of the many companies available, Outlaw said he uses FamilyTreeDNA.com because of its larger database.

The companies can compare a persons DNA with whats in their databases and show relatives as well as distant ancestry.

The most popular test, Outlaw said, is a Y-DNA test that shows male relatives that share a common relative in the testers paternal line.

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DNA can help genealogists past the paper trail

Duncan #39;s Dinosaurs - Part 1 - DNA!
Duncan starts work on his Dinosaur Park! Visit me on facebook! http://www.facebook.com or Twitter: http://www.twitter.com Music: Kevin MacLeod (incompetech.com

By: Yogscastlalna

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Duncan's Dinosaurs - Part 1 - DNA! - Video

Duct tape used to bind Richard Swanson could forever tie him to his killer.

A DNA expert could not eliminate Andrew Sanford as a contributor to mixtures of genetic material found on duct tape used to bind Swanson during a 1980 robbery of the former South Y Shell station, according to Wednesday testimony in El Dorado County Superior Court in Placerville.

Sanford, now 50, is accused of killing the 16-year-old during the alleged robbery. Swanson suffocated after the perpetrator of the robbery bound him in duct tape, preventing him from breathing by covering his nose and mouth. Sanford has pleaded not guilty to the crime.

Shawn Kacer, assistant lab director at the Department of Justice Crime Lab in Sacramento, testified Wednesday that blood stains on the tape were largely from the gas station attendant. But Sanford's DNA could not be eliminated from mixtures contained on several sections of the tape, according to Kacer's testimony.

One sample of DNA recovered from the tape met requirements for entrance into state and nationwide databases of convicted criminals, Kacer said. The sample was entered into the databases in December 2010. One of the databases came back with a hit on Sanford in January 2011, according to his testimony.

Robert Blasier, an attorney who cross-examined Kacer, questioned the assistant lab director's testing methods and drew attention to possible controversy within the forensics community about the lab's specific procedures. He also highlighted contamination of some samples.

Kacer found both his DNA and the DNA of Jim Jeffery, who examined the evidence in 1980 during testing, according to his testimony.

Prosecutors also called Jefferey, a DOJ criminalist, to the stand Wednesday. The focus of the questioning from attorneys was on his handling of the duct tape from the Swanson crime scene nearly 33 years ago.

Jeffery said he worked on a bench top covered with butcher paper and started off the examination with his bare hands, providing a possible source of the contamination later found by Kacer.

When asked again if he wore any type of glove, Jeffery said he may or may not have worn playtex gloves, as it wasn't protocol in 1980. It was protocol, however, to never open more than one item at a time, Jeffery said. He, like Kacer, noted fingerprint dust on one of the pieces of tape.

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DNA may link Sanford to Swanson killing

In a Maryland case that's garnered the attention of the other 49 states, the federal Department of Justice and the national science community, the U.S. Supreme Court will hear arguments Tuesday over whether to restrict police in collecting DNA to solve crimes.

The justices will rule on a police practice common in Maryland: taking genetic information from individuals arrested but not convicted to link them to unsolved crimes. In the past, the court has acknowledged the power of DNA but has not allowed it to run afoul of fundamental American rights such as the Fourth Amendment's protection against unreasonable searches.

At the center of the case is a Salisbury man, Alonzo Jay King. Police took his DNA when he was arrested in 2009 on assault charges and linked him to the 2003 rape of a Wicomico County woman at gunpoint. King appealed his rape conviction, challenging the key DNA evidence.

The Baltimore-based Office of the Public Defender, which represents King, contends that taking DNA from a person before he or she is convicted of a crime tramples on the constitutional promise to be protected from warrantless searches. Maryland Attorney General Douglas F. Gansler argues that, once arrested for a crime, an individual is not entitled to the same expectation of privacy.

"There is a great deal at stake," Gansler said in an interview. "The use of DNA has really become commonplace in criminal investigations since the O.J. Simpson case.

"Not being able to use DNA would be a significant blow to law enforcement efforts," he said. "When you're using DNA evidence, you know exactly who committed a crime and who didn't."

Colin Starger, a University of Baltimore assistant professor of law, said a defendant, such as King, who has been found guilty of a violent crime doesn't necessarily draw much sympathy.

"It's not about him; it's about much broader concerns," he said.

Starger said allowing police to collect DNA samples in the name of solving crimes opens up the potential for the government's systematic invasion of privacy and the risk of exacerbating inherent racial and socioeconomic inequities in American criminal justice.

African-Americans made up 60 percent of the individuals for whom DNA was stored in Maryland's arrestee database in 2011, but blacks accounted for 30 percent of the population.

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U.S. Supreme Court to hear arguments over Maryland DNA case

NEW ORLEANS New Orleans police have arrested a suspect in a 1985 rape.

Troy Williams, 42, was arrested in Texas and transferred to New Orleans Wednesday, where he was jailed on rape, armed robbery, aggravated kidnapping and other charges, The Times-Picayune reports.

Police said they found Williams after the Louisiana State Police crime lab checked an evidence kit from the assault for DNA. The DNA found by the lab matched a sample from Williams.

Williams was 15 when the rape occurred, but will be tried as an adult.

For years, even in cases where DNA evidence was available, New Orleans police failed to process evidence kits related to rapes. That resulted in a backlog of hundreds of unresolved cases.

After Police Superintendent Ronal Serpas took office in 2010, the department began to prioritize processing untested evidence in unresolved cases, with assistance from the State Police crime lab and others. Serpas recently said the department has eliminated the backlog of untested evidence.

Police said Williams and another man assaulted a woman on the morning of Aug. 21, 1985. Authorities said one of the two men took $6 from the woman's purse, and she was forced into a nearby alley at gunpoint. There, she was forced to disrobe and was raped, police said. The woman couldn't scream for help because the gun was against her head during the attack, court documents state.

Afterward, the two men fled. The woman ran to her sister's residence and called the police. She then went to a hospital and underwent a rape examination.

This past Nov. 19, New Orleans detective Orlynthia Miller-White received a report from the Louisiana State Police crime lab that DNA from the rape matched a profile of Williams stored on the Combined DNA Index System, or CODIS, an FBI-managed collection of DNA samples from people convicted of certain crimes.

Miller-White eventually located the victim, who said she didn't know Williams and had never consented to having sex with him.

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DNA match leads to arrest in 1985 cold case rape

Public release date: 24-Feb-2013 [ | E-mail | Share ]

Contact: Robert Perkins perkinsr@usc.edu 213-740-9226 University of Southern California

Two USC scientists have developed an algorithm that could help make DNA sequencing affordable enough for clinics and could be useful to researchers of all stripes.

Andrew Smith, a computational biologist at the USC Dornsife College of Letters, Arts and Sciences, developed the algorithm along with USC graduate student Timothy Daley to help predict the value of sequencing more DNA, to be published in Nature Methods on February 24.

Extracting information from the DNA means deciding how much to sequence: sequencing too little and you may not get the answers you are looking for, but sequence too much and you will waste both time and money. That expensive gamble is a big part of what keeps DNA sequencing out of the hands of clinicians. But not for long, according to Smith.

"It seems likely that some clinical applications of DNA sequencing will become routine in the next five to 10 years," Smith said. "For example, diagnostic sequencing to understand the properties of a tumor will be much more effective if the right mathematical methods are in place."

The beauty of Smith and Daley's algorithm, which predicts the size and composition of an unseen population based on a small sample, lies in its broad applicability.

"This is one of those great instances where a specific challenge in our research led us to uncover a powerful algorithm that has surprisingly broad applications," Smith said.

Think of it: how often do scientists need to predict what they haven't seen based on what they have? Public health officials could use the algorithm to estimate the population of HIV positive individuals; astronomers could use it to determine how many exoplanets exist in our galaxy based on the ones they have already discovered; and biologists could use it to estimate the diversity of antibodies in an individual.

The mathematical underpinnings of the algorithm rely on a model of sampling from ecology known as capture-recapture. In this model, individuals are captured and tagged so that a recapture of the same individual will be known and the number of times each individual was captured can be used to make inferences about the population as a whole.

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Taking the gamble out of DNA sequencing

PSADNA Graded Cut Signatures MANTLE, AARON, MAYS MORE!
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PSADNA Graded Cut Signatures MANTLE, AARON, MAYS

21 Apostolic DNA part 2, Recorded 4-1-12
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20 Apostolic DNA, Recorded 4-1-12
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20 Apostolic DNA, Recorded 4-1-12 - Video