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Are Home DNA Test Kits a Good Idea?

Globally 800,000 people have taken such a test but what's the point? Vivienne Parry is a science journalist and Mark Thomas is Professor of Evolutionary Genetics at University College London

(PHOTO: A digital representation of the human genome at the American Museum of Natural History in New York City. CREDIT: Mario Tama/Getty Images)

5 minutes

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Newshour

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