将基因型为AaBb(基因独立分配)的植物花粉离体培养,再利用秋水

将基因型为AaBb(基因独立分配)的植物花粉离体培养,再利用秋水仙素处理这些幼苗,所有成体再进行自交,其后代是                                          (  )

A. 全部为纯种

  B.1/4为纯种

  C.全部为杂种

  D.无后代产生

答案

A


解析:

  花粉离体培养,再利用秋水仙素处理这些幼苗,所有成体都是纯合体,纯合体自交,其后代仍然是纯种。

【点评】本题考查单倍体育种过程。一般单倍体育种得到纯合体,可以大大缩短时间。

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