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Old 07-19-2013, 06:15 PM
 
269 posts, read 426,327 times
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Quote:
Originally Posted by Mhundred View Post
I'm sorry but .1% has to be well within the range of error. It's quite possible you have no native blood at all. Not to mention i believe all humans are about 99.9% genetically identical with that .1% representing the minor racial differences.

Frankly it could be argued that anybody on earth could share .1% genetic similarity with any ethnic group.
I think what people fail to understand about these comparative analysis is the use markers found common in an ethnic group, not exclusive to an ethnic group. An alleles found common within the Italian population will be dubbed a *Italian* maker even though other markers exist in that population. Outliers are removed and and any Italian that does not cluster with that group may have skewed results.

Also, people try basing their autosomal results with their physical appearance. The regions being tested on the genome for ancestry are located in non-coding regions of the DNA, only about 2% and even less are genetically coded for phenotype (facial features).
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Old 07-23-2013, 12:41 AM
 
3,645 posts, read 8,645,622 times
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If that .1% shows up in conervative mode then it's probably not noise. In order for anything to show up in conservative mode, it has to be over the 90% confidence threshold that it actually is that ethnicity or race. 23andme's explanation of the ancestry composition explains it better. After I read it, it made a lot more sense and now I know that low percentages aren't always noise.
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