問題詳情
67. Which of the following statements about microRNAs (miRNAs) are CORRECT? ① miRNAsoriginate from exogenous dsRNA. ② miRNAs form a perfect complementary to its targetmRNA. ③ Some miRNAs can functionally inhibit mRNA translation. ④ Some miRNAs canpromote mRNA decay. ⑤ miRNAs are transcribed by RNA polymerase III.
(A) ①,⑤
(B) ②,③
(C) ③,④
(D) ②,④
(E) ③,⑤
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