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How well do home DNA kits really work?

Testing AncestryDNA, 23andMe, and MyHeritage

(Leonid A. Mirny via CNN)

DNA tests that claim to unlock your family history and trace your ancestral roots from do-it-yourself kits sent right to your home are more popular than ever. But how accurate are they?

To find out, TODAY national investigative correspondent Jeff Rossen and the Rossen Reports team enlisted identical triplet sisters from California — Kaeli, Kelsey and Korrie — to try kits from three popular companies: AncestryDNA, 23andMe, and MyHeritage.

All three brands of kit can be purchased online for under $100. You can even get kits for your dog or cat to trace their DNA and determine their exact breed.

Watch the story below: