大肠杆菌的密码子和遗传信息分别位于( ) A、DNA分子和mRNA分子  

大肠杆菌的密码子和遗传信息分别位于( )

A、DNA分子和mRNA分子                 B、DNA分子和DNA分子

C、mRNA分子和DNA分子                 D、tRNA分子和mRNA分子

答案

C

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