H-Y antigen and the genetics of sex determination.


Widespread phylogenetic conservation of H-Y antigen indicates persistence of a vital function. It has been proposed that this function is the primary determination of mammalian sex. According to this proposal, the indifferent embryonic gonad is induced to differentiate as a testis in the presence of H-Y antigen, and as an ovary in the absence of H-Y antigen… (More)


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