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The Legal Genealogist Discusses Ancestry.com’s New Autosomal Testing

Over at The Legal Genealogist (one of my favorite new blogs!), blogger Judy Russell, J.D., CG discusses Ancestry.com’s new autosomal DNA testing service in “Science and the “10th” cousin.”

As I noted in a recent blog post (see “WDYTYA Reveals More Information About Ancestry.com’s New Autosomal DNA Testing“), autosomal DNA testing was featured in the recent episode of Who Do You Think You Are with actor Blair Underwood.  After revealing Mr. Underwood’s biogeographical estimates (74% African American and 26% European), they revealed a genetic cousin found in the Ancestry.com’s database:

The service identified a distant cousin (somewhere around the 10th cousin range) who lived in Cameroon (an Eric Sonjowoh). Mr. Sonjowoh was already in the Ancestry.com database, which is why they were able to compare him to Mr. Underwood. According to Eric, someone approached him in 2005 and asked him for his DNA because African Americans were trying to trace their family back to Cameroon. I’m not sure what database the DNA was in, but it shows that Ancestry.com has pre-populated its database with at least some samples from other public and/or proprietary data sources.

Ms. Russell expresses concerns over the identification of the relationship between Mr. Underwood and Mr. Sonjowoh as “1oth Cousins:”

I have a bit of an issue with telling person A (Blair Underwood) that person B (Eric Sonjowoh) is a 10th cousin when there isn’t a prayer of a paper trail to support that statement — and the science isn’t good enough to say it either.

She notes – very correctly – that autosomal testing alone cannot identify a relationship as being 10th cousins rather than anything ranging from 5th, … Click to read more!

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WDYTYA Reveals More Information About Ancestry.com’s New Autosomal DNA Testing

[Update (2/24/12): Some genealogy forums are reporting that callers to Ancestry.com are being told that the autosomal DNA test will publicly launch in approximately 1 month (late March or early April).]

Tonight’s episode of Who Do You Think You Are? featured African-American actor Blair Underwood. For those not familiar with Who Do You Think You Are, the 1-hour program examines the genealogy of a celebrity, typically focusing on one or two of their most interesting families.

DNA Testing

This episode was of particular interest to me because it featured Ancestry.com’s new autosomal DNA testing service, which I’ve written about before (see “Ancestry.com’s Autosomal DNA Product – An Update”). While there wasn’t too much new information about the DNA product in this episode, it was an interesting sneak peek at the

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