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Explain why the same individual can be told they have different ancestry composition when the same...

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Biology

Explain why the same individual can be told they havedifferent ancestry composition when the same data is analysed bydifferent ‘studies’. What other factors do you think might affectthe outcome of such tests (4 marks, 4-6 sentences max)?Note: this is not asking about the same data analysed withdifferent stringency values.

What are some of the genetic techniques that arecurrently used to identify ancestry?

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3.6 Ratings (453 Votes)
It seems like brothers and sisters should have the same ancestry background After all they both got half their DNA from mother and half from father But because of how DNA is passed on it is possible for two siblings to have some big differences in their ancestry at the DNA level Culturally they may each say they are 18th Cherokee but at the DNA level one may have no Cherokee DNA at all DNA isnt passed down from generation to generation in a single block Not every child gets the same 50 of moms DNA and 50 of dads DNA Unless of course they are identical twins Let us understand by an example One way to think about this is to imagine DNA as a bunch of colored beads Since we are    See Answer
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