The endocrine role in mammalian sexual differentiation.

摘要: Publisher Summary The hormones play an essential role, in all species, the development and function of ovaries testes, but most species with Y-determined sexual differentiation, administration androgens or estrogens does not cause sex reversal. This chapter explains mechanism by which genetic is ultimately translated into phenotypic because mechanisms are different two types mammals. In marsupial, chromosomal directly dictates major aspects phenotype. There some evidence that factors may control at least one sexually dimorphic trait eutherian mammal: more Y-linked traits appear to influence height tooth size independent endocrine function. human Y chromosome has been mapped YAC cloning, specific gene(s) responsible for these growth phenomena identified. phenotypes form man marsupial be totally dissimilar. both, components controlled testicular there a direct component, difference being contribution male phenotype less important mammal.