采用下列哪一种方法,可以依次解决①—④中的遗传学的问题。( 

采用下列哪一种方法,可以依次解决①—④中的遗传学的问题。(     )

①鉴定一只白羊是否是纯种         ②在一对相对性状中区分显隐性

③不断提高小麦抗病品种的纯合度   ④检验杂种F1的基因型

A.杂交、自交、测交、测交        B.测交、杂交、自交、测交

C.测交、测交、杂交、自交        D.杂交、杂交、杂交、测交

 

答案

B

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