基因经精子或卵细胞的在亲子代间传递．下列选项中能够表示从亲代到生殖细胞再到子代，细胞中染色体数目变化规律的是_刷题宝

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基因经精子或卵细胞的在亲子代间传递．下列选项中能够表示从亲代到生殖细胞再到子代，细胞中染色体数目变化规律的是（　　）

A：2N→2N→2N

B：2N→N→2N

C：N→N→N

D：N→2N→N

上一题下一题 0.0难度选择题更新时间:2014-05-01 10:37:10

答案(点此获取答案解析）

B

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