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Ancient chinese population migration revealed by ALDH2 gene mutation - General Discussion - China History Forum, Chinese History Forum

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 ALDH2 gene mutation is a mutation that renders a person unable to properly digest alcohol.  You can tell you have this genetic mutation if your face turn red after drinking a cup of alcohol.  The map shows the distribution of ALDH2 genetic mutation throughout asia.  According to the study, this genetic mutation originated around shandong, and then spread outward throughtout asia, even into central asia and iran.  The area with high frequency of this genetic mutation is in shandong, shanghai, southern china and central japan.  In southern china, Hakka and Minnam populations have the highest frequency of this genetic mutation.



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