問題詳情
40. Which of the following statements about the RNA processing is FALSE?
(A) Not all of the nucleotides in the mature mRNA can be translated into proteins.
(B) Spliceosomes are composed of proteins and snRNAs.
(C) Modified guanosine is required for the capping of pre-mRNA.
(D) Methylation is required for the capping of pre-mRNA.
(E) PolyA polymerase adds 50-200 more adenines at the stop codon.
參考答案
答案：E
難度：非常困難0
統計：A(2),B(1),C(1),D(3),E(0)
用户評論
【用戶】悠然自得
【年級】大一上
【評論內容】終止密碼子後方會有一小段非轉譯區，接著才會接多腺嘌呤尾成熟mRNA:非轉譯區→UTR，起始端與終端皆有，分成5'-UTR、 3'-UTR ♚three prime untranslated region (3'-UTR) is the section of messenger RNA (mRNA) that immediately follows the translation termination codon.The 3'-UTR often contains regulatory regions that post-transcriptionally influence gene expression.♚部分摘自維基百...