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African American DNA Research Forum

Re: Admixture
In Response To: Admixture ()

Hi Howard & all,

I recently heard that one reason FTDNA doesn't perform admixture tests is that they found an 8-10% error rate when they considered merging with DNA Print (Ancestry by DNA Test). As others have stated, you may not have received the pairs indicative Native American ancestry.

I've been sort of cautioning people about possibly receiving really odd results if you submit a sample to DNA Tribes and have some significant admixture. I submitted my Gram's sample (82% Sub-Saharan African and 18% European from her ABD 2.5 Test) and got some really unusual results (& very low matches) heavily on the East Indian and Asian side. As I look at the CODIS markers along one allele and then the other I'm starting to tease out more info, but still nothing that I could call definitive. Based on her description of her parents, the one side of allelic values fits more of what I expect from her father, having a greater frequency in African and African American populations. Her mother appears to have had more admixture than we knew. The combination seems to "trick" the databases in seeing her as East Indian.

Your DNA Cousin,
Sonia


18 Dec 2002 :: 14 Nov 2008
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