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![]() The samples come from some databases to which all scientists have access, and the companies may also collect their own. ![]() The companies compare customers' DNA samples to samples they have from people around the world who have lived in a certain area for generations. But how could I have an Italian grandmother and almost no Italian genes?Ĭarmen Grayson's Helix/National Geographic results And the Italian? Mom had 11.3 percent to my 1.6. But Mom came back as 25 percent southern European, me only 6 percent. This time, I at least had a category for southern Europe. We opened our results together and were just as surprised. We decided to get a second opinion and sent away to another company, 23andMe. How could I have 50 percent of Mom's DNA and not have any Italian? We do look alike, and she says there is little chance we were switched at birth. But my Helix results didn't even have an "Italy and Southern European" category. That made sense because of her Italian mother. Mom's results: 31 percent from Italy and Southern Europe. Last fall, we sent away to get our DNA tested by Helix, the company that works with National Geographic. The author got her name from her Italian grandmother, Gisella D'Appollonia, but, according to two DNA ancestry tests, not a lot of genes.
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