Determination of in vivo Alterations in a Phenotype of Human Spermatozoa

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Abstract

A PHENOTYPE of rabbit spermatozoa for the dopa oxidase reaction has been reported1. In the presence of L-dopa (dihydroxyphenylalanine), the cells develop melanin, proportional in amount or intensity to that present in the coat of the donor animal. These methods have been revised extensively to make possible a quantitative examination of the dopa reaction in human sperm.

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ACKERMAN, D. Determination of in vivo Alterations in a Phenotype of Human Spermatozoa. Nature 227, 1148–1149 (1970) doi:10.1038/2271148a0

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