Nova - SECRETS IN OUR DNA
Preview: 12/18/2020 | 30s
Caught up by an explosion of popular interest in genealogy research, more than 12 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA, hoping to obtain hidden clues to family origins and forecasts of their future health. But what actually happens once the sample is in the hands of testing companies? What are they looking at and how accurate are they?
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