下列有关性染色体组成为xy的受精卵和初级精母细胞形成精子的分裂过程的叙述中哪项与正常情况下的事实不符 A.产生染色单体和染色单体变成染色体的 Template




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tomski下列有关性染色体组成为xy的受精卵和初级精母细胞形成精子的分裂过程的叙述中哪项与正常情况下的事实不符 a.产生染色单体和染色单体变成染色体的 coloring