某二倍体生物的一个细胞正在进行着丝点分裂下列有关叙述正确的是 A.细胞中一定不存在同源染色体b.着丝点分裂一定导致dna数目加倍c Template




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tomski某二倍体生物的一个细胞正在进行着丝点分裂下列有关叙述正确的是 a.细胞中一定不存在同源染色体b.着丝点分裂一定导致dna数目加倍c coloring