The FBI is now working with Astrea Forensics, the same lab that helped convict Gilgo Beach killer Rex Heuermann, to reanalyze DNA from Nancy Guthrie’s home. Guthrie, 84, vanished from her Tucson ...
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 ...
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