I assume for tracing your heritage they look at DNA segments that are common in certain areas but how do they trace back your lineage if they only recently started DNA testing. Did they dig up all the corpses and swab them?
In: Biology
Certain communities share “genetic markers” that are unique to them, therefore if you have said marker, your DNA or History includes that region. It’s like a DNA map of where your eyes been and who you’ve been with
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