下列关于染色体变异的叙述正确的是 A.染色体结构变异只能改变细胞中基因数目不改变基因的排序b.同源染色体的非姐妹染色单体之间互换属于 Template




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tomski下列关于染色体变异的叙述正确的是 a.染色体结构变异只能改变细胞中基因数目不改变基因的排序b.同源染色体的非姐妹染色单体之间互换属于 coloring