Although DNA evidence collected in the Nancy Guthrie investigation has yet to yield matches, law enforcement is still bracing for results that could expose cracks in the southern Arizona case ...

Only a few years ago, Tuesday’s announcement that a glove believed to be connected to the disappearance of Nancy Guthrie in Tucson, Arizona, had no match in a DNA database would have been a dead end.

An expert said lab analysis of gloves found near Nancy Guthrie’s home could produce results within days. By Audra D. S. Burch As the Nancy Guthrie abduction case stretches into a third week, ...

TUCSON, Ariz. — A Q-tip, a tissue and a pizza crust. To investigators, this seemingly innocuous trash was DNA-laden treasure, helping crack the cases of the University of Idaho murders, the Golden ...

An expert on genetic genealogy has said that DNA collected from Nancy Guthrie’s property will help law enforcement find the person responsible for the disappearance of the 84-year-old mother of Today ...

A groundbreaking project is piecing together Leonardo da Vinci’s genetic profile by tracing his lineage across 21 generations and comparing DNA from living descendants with remains in a Da Vinci ...

Researchers have uncovered the enzyme behind chromothripsis, a chaotic chromosome-shattering event seen in about one in four cancers. The enzyme, N4BP2, breaks apart DNA trapped in tiny cellular ...

Investigators in Arizona are hoping that DNA found in and around Nancy Guthrie's house in Tucson could lead them to a suspect — and the missing woman. Guthrie, the 84-year-old mother of Today show ...

Officials investigating the disappearance of Nancy Guthrie have recovered DNA from a glove found near her house. If they don't get an exact match, they could turn to genealogy websites for clues. The ...

An analysis of bones from ancient people who once lived in Colombia has discovered DNA that does not directly connect them to any other ancient or modern population in South America. It is thought ...