Growth of Differentiating Testes and Ovaries

  title={Growth of Differentiating Testes and Ovaries},
  author={Ursula Mittwoch and Joy D. A. Delhanty and Felix Beck},
IN mammals the presence of testes is required for male sexual differentiation of the embryo. By contrast, embryonic ovaries seem to play only a minor part in the determination of the female phenotype1. Cytogenetic evidence has made it clear that the mammalian Y-chromosome is strongly male determining; that is, directly or indirectly, it causes the differentiation of the indifferent gonad into a testis. Ovaries are formed even if only a single X-chromosome (and no other sex chromosome) is… CONTINUE READING

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