“23andMe and Ancestry.comAncestry.comAccuracy is very high when it comes to reading each of the hundreds of thousands of positions (or markers) in your DNA. With current technology, AncestryDNA has, on average, an accuracy rate of over 99 percent for each marker tested.https://www.ancestry.com › ancestrydna-test-accuracyAncestryDNA® Test Accuracy share the goal of empowering people and families through the sharing of ancestry and genetic information,” said Dr. ... “By partnering with Ancestry.com, we welcome users of the Ancestry.com DNA service into our community to help them further understand their origins.”Sep 9, 2008