問題詳情
58. Transcription generates pre-mRNA and undergoes modification with 5'cap and 3' poly-A tail. Whichof the following statements about the structure and function of these pre-mRNA alterations is NOTcorrect?
(A) poly-A tails are usually consisting of 50-250 adenine
(B) facilitate the export of maturemRNA from the nucleus
(C) protect mRNA from hydrolytic degradation
(D) help ribosomes attach to 3'end of mRNA in cytosol
(E) none
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
用户評論
【用戶】熊熊讚
【年級】高三下
【評論內容】(D)應是有助於核糖體與mRNA的5'端附薯。