DogmaHunter
Code Monkey
- Jan 26, 2014
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I wasn't challenging your post.
I'm legitimately curious as to how DNA sites do that.
My wife always says, "How can they tell you're from [whatever line] if they don't have [that line's] DNA?"
I think it's a good question.
If I sent my DNA in, and they came back and said I came from Genghis Khan ... how did they determine that?
Do they have Genghis Khan's DNA stored somewhere?
I don't see how that would be possible without having some kind of red thread to match DNA against.
However, what could be determined is the rough geographic wherabouts of your ancestors. It's the basis of the genographic project.
National Geographic Geno DNA Ancestry Kit | Human Migration, Population Genetics
It works by looking for specific DNA markers that are associated with geographic locations around the world in terms of origins of those markers.
I've been wanting to participate for some time in that project... But the wife thinks its too pricey for, albeit cool, information that doesn't serve any real practical purpose in our lives. "so what if your long dead ancestors came from X or Y? Like...who cares?".
She's right off course. But I think knowing is its own reward
Maybe I should ask for a kit for my birthday or something
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