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【单选题】
黄色卷尾鼠彼此杂交,得子代:6/12黄色卷尾,2/12黄色正常尾,3/12黑色卷尾,1/12黑色正常尾,问:这两对性状中哪一个是致死基因,是何种方式致死。( )A.
卷尾，隐性致死
B.
卷尾，显性致死；
C.
黄色，隐性致死；
D.
黄色，显性致死；
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