每日口說挑戰 別分那麼細！我們以前都是女生！ (We were all female)

今日挑戰句子

Once activated, one of the genes on the Y chromosome known as the SRY gene has two functions: to inhibit certain features of the X chromosome and to impose through dominance the physiological traits that a male must have.

在Y染色體中的 SRY 基因一旦被活化，就會有以下兩種功能：抑制X染色體的某些特徵，以及控制並強加影響男性需要具備的生理特性。