試題詳解

48. Which one of the below is required for RNA splicing to occur?
(A) a free 5' hydroxyl created by hydrolysis of the phosphate ester bond
(B) a cyclic phospodiester at the 3' end of the RNA molecule
(C) a2' hydroxyl group
(D) the enzyme splicase
(E) a poly-A tail VNOILYN