下列关于减数分裂的叙述，正确的是①减数分裂包括两次连续的细胞分裂②在次级卵母细胞中存在同源染色体③着丝点在第一次分裂后期一分为二④减数分裂的结果是染色体数减半、DNA数不变⑤同源染色体的分离导致染色体_刷题宝

题干

下列关于减数分裂的叙述，正确的是（）

①减数分裂包括两次连续的细胞分裂②在次级卵母细胞中存在同源染色体

③着丝点在第一次分裂后期一分为二④减数分裂的结果是染色体数减半、DNA数不变

⑤同源染色体的分离导致染色体数目减半⑥联会后染色体复制，形成四分体

⑦染色体数目减半发生在第二次分裂的末期

A：①②③

B：④⑤⑥

C：①⑤

D：⑥⑦

上一题下一题 0.0难度选择题更新时间:2019-01-18 04:13:38

答案(点此获取答案解析）

C

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