What can DNA testing companies reveal about our ancestry and health, and at what risk?

Secrets in our DNA (with Audio Description) NOVA

Premiered January 13, 2021
Secrets in our DNA (with Audio Description)

Some 30 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA. But what happens once the sample is in the hands of testing companies, and how accurate are their results?

This episode contains audio description, which is now a standard feature in more recent NOVA episodes.

About the Program

NOVA

NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives. Visit the official website to watch full-length documentaries, or explore our world through short-form video, on our digital publication NOVA Next.

Here’s your ticket to stream.

Stream the best of public television on demand with GPB Passport: MASTERPIECE dramas and mysteries, NOVA, Ken Burns documentaries, Finding Your Roots and more. Binge full seasons, get early access to new episodes before they air on television and catch up on programs you missed with this powerful donor benefit from GPB!