英语翻译The externalgenitalia are undifferentiated until then,an

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英语翻译
The external
genitalia are undifferentiated until then,and the amount of
testosterone (or other androgens) determine whether they
differentiate into male-typical or female-typical genitalia.
With high levels of testosterone,the genitalia become the
penis,scrotum,and urogenital sinus,whereas low or absent
testosterone results in the development of the clitoris,labia
majora,and separate vaginal and urethral canals.Inter-
mediate levels of testosterone result in ambiguous genitalia,
e.g.an enlarged clitoris with fused labia,a small penis.

大体意思是,男女xing器官在决定选择性别之前,这时的性器官是没有区别的,性别的演化选择取决于雄性激素的水平的高低.如果雄性激素高,就会转变为雄性,xing器官就会变成有yingjing等一些男性器官,如果雄性激素水平低,xing器官就会演化成女性器官,具有yinhe,yindi,yinchun等.

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