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  • Title: Gene differentiation in four subcastes of Brahmins from Visakhapatnam, Andhra Pradesh.
    Author: Srikumari CR, Rajanikumari J, Venkateswara Rao T.
    Journal: Hum Hered; 1986; 36(6):373-8. PubMed ID: 3098673.
    Abstract:
    Blood group (ABO, MN, Rh, CcDEe) polymorphisms are reported here for 4 strictly endogamous subcastes of Andhra Brahmins. The coefficient of gene differentiation calculated from the gene frequencies is 0.87% demonstrating that only a small fraction of the total gene diversity is attributable to the differences between subcastes. In spite of the strict endogamy for the past 10-14 centuries, 99.13% of gene differentiation exists within the subcastes.
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