某植物高秆(D)对矮秆(d)显性,抗锈病(T)对易感病(t)显性

某植物高秆(D)对矮秆(d)显性,抗锈病(T)对易感病(t)显性,两对基因位于两对同源染色体上.下列对DdTtDdtt杂交后代的预测中错误的是(  )

 

A

由于等位基因分离,后代可出现矮秆类型

 

B

由于基因重组,后代可出现矮秆抗锈病类型

 

C

由于基因突变,后代可出现DDdTt类型

 

D

由于自然选择,后代的T基因频率可能上升

答案

C

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