Considering everyone’s related uf we go back far enough ti our african origins, at which point can ancestry tests and the like go “ah you are 20% scandinavian”? Were is the cutoff time period or how does this work?

Question

I may not be asking the rifht questions but i just dont get this at all

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In: 5

Answer 1

They can’t really.
While DNA testing is real science, the 20% Scandinavian bit is pseudoscience at best. It’s mainly just up to the tester to arbitrarily draw the lines.