African American DNA Research Forum
Re: Clarification of dna tests
In Response To: Re: Clarification of dna tests ()
>1. DNA Genomics that broke down my DNA by % I had
Correction: This would be 80% Sub-Saharan African rather than African American)
>2. According to DNA Tribes I had matching markers
These are two ways of presenting the same information, which is based on all of your DNA. The result from DNA Tribes breaks down what DNAPrint Genomics gave you into locations of actual matching people instead of just broad continental descriptions like "European" etc.
>3. I also had a test done on my Mom and Dad by
L3 is African and R1B is European, but these two results represent a tiny portion of your DNA inheritance. The DNAPrint Genomics and DNA Tribes tests use autosomal DNA, 'the rest' of your DNA that these two tests do not use.
Remember that your parents' Y-chromosome and mtDNA test results reflect only two people in each generation from your entire ancestry.
You have 4 grandparents, but these only reflect your father's father, and your mother's mother, two grandparents are not represented.
You have 8 great grandparents, but these two tests only reflect your grandfather's father on one side, and your grandmother's mother on the other side. Six great-grandparents are not represented. Those 6 could all be from different ethnic groups which would explain why DNA Tribes gave you so many different ones.
And every generation you go back, the number of ancestors doubles. So then there are 14 great-great grandparents not represented, and so on, each one could be a different ethnicity and it's reflected in your DNA.
I have tested 4 of my lines through African Ancestry and got 4 different results. These were 2 mtDNA tests and 2 y-chromosome tests. My results from DNAPrint Genomics was 87% Sub-Saharan African and 13% European. None of the four lines tested came back as European, so that ancestry is in one of the many lines I have NOT tested.
Amazing how your DNA faithfully records your genetic history. The problem is how to get to it...
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