| http://www.w3.org/ns/prov#value | - Thus, African ancestry testing based on a single locus, such as the mtDNA or Y chromosome, as is commonly done by ancestry-testing companies, provides only a very limited, and in many cases, misleading picture of an individual's African ancestry[snip]The amount of European ancestry shows considerable variation, with an average (?? SD) of 21.9% ?? 12.2%, and a range of 0 to 72% (Table 1).
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