题目内容
对原核延长因子的叙述正确的是( )
2021-11-10
A.EF-T有Tu和Ts两个亚基
B.因子EF-G有转位酶的活性
C.进位复合物为AA-tRNA-Tu-GTP
D.进位和成肽步骤都需EF-T参与
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