I hear it somewhere behind me: a liquidy expulsive sound. I'm sitting on a patio inches from a sidewalk. Flinching, I'm unable to see through the shrub at my shoulder, but the origin of the noise slouches up the street, past my elbow, in all his denimed, tractor-capped glory.
"Sorry," he mutters.
What is mtDNA?
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A recent blog post from FamilyTreeDNA, the first in a five-part series,
delves into the importance of mitochondrial DNA in genealogical research.
The uni...
1 hour ago
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