DNA is very good at identifying family relationships. It will tell you if somebody is a parent or a sibling, and it can even identify cousins and other relationships. But it is not good at identifying race because race is not biological; it is not encoded in our DNA. When geneticists look at our DNA, they see patterns or markers. Then they compare those with people in a particular area and see what patterns or markers are common in the people who were tested and also live in that area. If you have enough markers, these tests claim, then you are probably from a particular area. Probably, but
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