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1.下面是减数分裂过程中几个步骤选出正确的顺序是⑴

着丝点的分裂染色体分开⑵形成四个子细胞⑶进行第二

次分裂⑷同源染色体分开⑸染色体交叉互换⑹联会⑺

染色体的复制⑻细胞质分裂A7→8→6→1→2→4→3→5

B1→3→5→7→2→4→6→5 C7→6→5→3→1→8→4→5

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名称是。此细胞分裂后的子细胞叫作含条染色体。⑶图C处于期此细胞的名称是它分裂后得到的细胞为和。⑷A、C两图中染色体数之比为DNA数量之比为。11下图的五个细胞是某种生物不同细胞分裂的示意图假设该生物的体细胞只有4条染色体请回答以下问题1A、B、C、D、E 中属于有丝分裂的是___________属于减数分裂的是

___________。2A细胞有___________条染色体有

___________个DNA分子属于___________期。3具有同源染色体的细胞有

______________________________________。4染色体暂时加倍的细胞有______________________________________。5不具有姐妹染色单体的细胞有

______________________________________。6A细胞经分裂形成的子细胞是___________染色体有___________条。

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