問題詳情
65. In eukaryotic cells, mRNA modification includes __________.
(A) splicing out exons and join introns
(B) add a cap at 3’ end to protect the 3’ end
(C) add a phosphate group at 5’ end to increase stability
(D) remove nucleotides at 3’ end before addition of a poly A tail
(E) remove 3’UU and attach CCA
(A) splicing out exons and join introns
(B) add a cap at 3’ end to protect the 3’ end
(C) add a phosphate group at 5’ end to increase stability
(D) remove nucleotides at 3’ end before addition of a poly A tail
(E) remove 3’UU and attach CCA
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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