問題詳情

5. Which of the following statements about small RNA is not correct?
(A) Small RNAs are short, non-coding RNA molecules that can regulate geneexpression.
(B) Small RNAs can regulate gene expression in the nucleus via chromatin-dependent gene silencing.
(C) Most small interfering RNAs (siRNAs) are generated through multipleprocessing steps from longer primary transcripts produced by RNA polymerase II.
(D) Most microRNAs (miRNAs) form imperfectly complementary stem-loopstructures, pair imperfectly with sites in the 3' untranslated region of their targetmRNAs.
(E) Both miRNAs and siRNAs are produced from longer RNA precursors throughthe activity of ribonuclease IlI-like nucleases called Dicer in animals and DICER-LIKE (DCL) in plants.

參考答案

答案:[無官方正解]
難度:計算中-1
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