DNA中不含有下列哪种碱基( )。A.腺嘌呤A B.鸟嘌呤G C.尿嘧U D.胞嘧啶C

作者: tihaiku 人气: - 评论: 0
问题 DNA中不含有下列哪种碱基( )。
选项 A.腺嘌呤A B.鸟嘌呤G C.尿嘧U D.胞嘧啶C
答案 C
解析 DNA中只含有A、G、C、T四种碱基。RNA中只含有A、G、C、U四种碱基。所以DNA不含尿嘧啶U,故选C。

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