Re: I could use some assistance
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In reply to:
Re: I could use some assistance
G Davis 3/12/07
GD --
When you said 27% is mathematically impossible, you were probably thinking that numbers should decrease by exactly half with each generation if there's one Native American ancestor (50%, 25%, 12.5% etc.)
The statistics involved in estimating percentages of Native American ancestry by DNA methods are quite complex, but they are not based on Degree of Indian Blood. Roughly speaking, a large number of markers are tested, and the results reflect the percentage of alleles that are found in higher concentrations in Native Americans than in other population groups.
However, siblings inherit random combinations of these markers from their parents, so they can end up with different proportions of the Native American markers: one might have 19%, another 29%, and so forth. These markers could be inherited from any number of your ancestral lines, and the test results don't specify the number of generations.
The website http://ancestrybydna.comhttp://ancestrybydna.com has more background if you're interested.
Ann Turner
co-author (with Megan Smolenyak) of "Trace Your Roots with DNA"
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Thank you Ms. Turner
Nancy A. Bellman 3/12/07
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Re: I could use some assistance
G Davis 3/12/07
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Re: I could use some assistance
Ann Turner 3/12/07
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Cheryl Klondike 3/12/07
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Nancy A. Bellman 3/12/07
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Re: I could use some assistance
Cheryl Klondike 3/12/07
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Cheryl
Nancy A. Bellman 3/12/07
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Cheryl
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Louis C. Gordon 7/03/07
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G Davis 7/04/07
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Louis C. Gordon 9/11/08
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Juanita Chafin 7/03/07
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Juanita Chafin 7/03/07
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Louis C. Gordon 7/03/07
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Juanita Chafin 7/03/07
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Re: I could use some assistance
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Re: I could use some assistance
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Re: I could use some assistance