性-人類性的基本層面
Sex
- Basic Aspects of Human Sexuality |
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染色體的功能：性的分化首先是如何發展的？ |
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如果這個新的受精細胞（受精卵）含有兩條X染色體，胚胎將最終發育出卵巢。然而，如果受精卵中存在Y染色體，它會調控未分化的生殖細胞團發育成睾丸。進而，睾丸產生睾丸激素，進一步促進胚胎發育成男性。 |
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The Role of Chromosomes:How do the different sexes first develop? |
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If the new fertilized cell contains two X-chromosomes, the embryo will eventually form ovaries. However, if a Y-chromosome is present, it stimulates the undifferentiated gonadal cell mass to develop into testicles. The testicles, in turn, produce the hormone testosterone which further advances the process of the embryo turning into a male. |
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