The 84-year-old mother of "Today" host Savannah Guthrie is believed to have been taken against her will from her Tucson, Ariz., home in the early morning hours of Feb. 1 ...

Investigators in the Nancy Guthrie disappearance have sent key DNA evidence, including blood, glove, and hair samples, to the ...

In another setback for the Nancy Guthrie kidnap probe, DNA on a glove found in the first weeks of the investigation turned out to belong to a restaurant worker and is unrelated to her masked abductor, ...

Three months after Nancy Guthrie’s disappearance from her Arizona home, investigators are focusing on DNA evidence, including hair and glove samples, now undergoing advanced FBI testing. Genetic ...

In the technique known as “environmental DNA metabarcoding,” probes are designed to target specific DNA fragments, similar to how anglers use specific bait to catch a particular species. The challenge ...

Researchers from Institute of Science, Tokyo, have developed a light-sensitive probe that crosslinks with 5-formylcytosine (5fC), a key epigenetic intermediate, enabling its detection in target DNA.