NOVA

Secrets in our DNA

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? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.

Secrets in our DNA

53m 26s

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? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.

Previews + Extras

  • Secrets in our DNA Preview: asset-mezzanine-16x9

    Secrets in our DNA Preview

    S48 E1 - 27s

    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? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.

  • Half Sisters Unite Thanks to DNA Testing: asset-mezzanine-16x9

    Half Sisters Unite Thanks to DNA Testing

    S48 E1 - 4m 19s

    Half-sisters share their unlikely story of finding one another through genetic testing, and what they learned about their family history along the way.

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