Social class, admixture, and skin color variation in Mexican-Americans and Anglo-Americans living in San Antonio, Texas.


Social class may act in different ways as a barrier to gene flow in urban populations, depending on ethnicity. We test the hypothesis that biological variation is affected by social class subdivision using skin reflectance data collected for 393 Anglo-American and 930 Mexican-American adults in the major urban population of San Antonio, Texas. Two… (More)


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