下列有关育种方法的叙述,正确的是 A.太空育种能培育出新物种 B.杂

下列有关育种方法的叙述,正确的是

A.太空育种能培育出新物种

B.杂交育种的原理是基因分离

C.单倍体育种能明显缩短获得纯合单倍体的年限

D.三倍体无子西瓜通过无性生殖能保持无子性状 

答案

D

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