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DNA

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A biopsy involves removing tissue to find out if you have a disease or the extent of it. The FDA recently approved a less-invasive “liquid” biopsy for a certain form of lung cancer. But the possibilities are far greater.  

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In this edition of Vital Signs, a growing trend in social media called sunburn art: Using various materials and deliberate overexposure in the sun to create patterns on the body.

Dr. Travis Vandergriff is an attending Dermatologist with Parkland Hospital System and an Assistant Professor in the Dermatology department of UT Southwestern Medical Center. He explained how sunburn art works and why he considers it dangerous.

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Nearly two decades after an ancient skeleton was discovered in Kennewick, Washington, scientists finally have a better idea about its hotly-debated origins. SMU anthropologist David Meltzer co-authored a recent study into what’s been dubbed the Kennewick Man. 

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The human genome has been in the spotlight for nearly a decade now, but some researchers say we can learn a lot about ourselves from sequencing the genomes of other animals — like snakes. A team of scientists led by a researcher at the University of Texas at Arlington sequenced the full genome of a Burmese python for the first time, and discovered just how extreme the reptile is.

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Where are the bodies from the graves at the Dozier Boys School, a former reform school in south Florida in the news for reported beatings, going for research? The University of North Texas Center for Human Identification. Discovering the boys' identities and how some of them died will be part of a day's work for researchers at the center. We'll find out about advances in forensic science that lend hope to solving this case and so many others at noon as Think host Krys Boyd talks to Dr. Art Eisenberg,  Chair of the Department of Forensics and Investigative Genetics at UNT Health Science Center in Fort Worth.

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David Keith, probably best known for his role in the movie An Officer and a Gentleman, is now on the campaign trail for a DNA registry to identify dog droppings.

The Fort Worth police crime lab will resume DNA testing a decade after questions were raised about whether its tests were valid.

Two wrongfully convicted men sentenced to life for rape and attempted murder will start the formal process of regaining their freedom this morning. KERA’s Bill Zeeble reports prosecutors say they’ve also identified the real suspects.

Dallas, TX – A Texas House committee has heard testimony on why it's important for authorities to hold onto evidence in criminal cases - even those when the defendant pleads guilty.

The Criminal Jurisprudence Committee wants to improve Texas DNA testing.

Rebecca Bernhardt, policy director of the Texas Forensic Service, told the committee Tuesday that DNA evidence is sometimes destroyed as part of guilty plea agreements with defendants.