如果将含有一对同源染色体的精原细胞的两个dna分子都用15n标记并只供给精原细胞含14n的原料则该细胞进行减数分裂产生的四个精子中含 Template




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tomski如果将含有一对同源染色体的精原细胞的两个dna分子都用15n标记并只供给精原细胞含14n的原料则该细胞进行减数分裂产生的四个精子中含 coloring