DNA sources

EE user Bob raised the 64K question of the DNA era: How do we evaluate DNA using those two basic research tools—the Genealogical Proof Standard and the Evidence Analysis Map?

Inquiring minds have asked, “About DNA and the GPS: How is DNA related as to source, information, and evidence with regard to the match and the most recent common ancestor?"

Yesterday, we tackled the first issue: separating two different tools that are often mentally merged: