Mm和nn分别表示某动物的两对同源染色体aa和bb分别表示等位基因基因与染色体的位置如图所示下面对该动物精巢中部分细胞的分裂情况 Template




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tomskimm和nn分别表示某动物的两对同源染色体aa和bb分别表示等位基因基因与染色体的位置如图所示下面对该动物精巢中部分细胞的分裂情况 coloring