某一生物有四对染色体假设一个初级精母细胞在产生精子细胞的过程中其中一个 次级精母细胞在分裂后期有一对姐妹染色单体移�了同一极则这个初级精 Template




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tomski某一生物有四对染色体假设一个初级精母细胞在产生精子细胞的过程中其中一个 次级精母细胞在分裂后期有一对姐妹染色单体移�了同一极则这个初级精 coloring