試題詳解

11. Which of the following statement regarding eukaryotic RNA polymerase II is     not true    ?
(A) The zipper of Rpb1 collaborates with the lid to initiate dissociation of the DNA-RNA hybrid.
(B) The lid of Rpbl interacts with DNA-RNA hybrid & maintains the hybrid dissociation.
(C) The pore 1 of RNA polymerase II is the place for extrusion of the 3'end of RNA when RNA polymerase II backtracks.
(D) Alpha-amanitin blocks translocation after a phosphodiester bond forms in transcription, without blocking nucleotide entry.
(E) Bridge helix lies next to the active center of RNA polymerase II & flexing this helix may function in translocation during transcription.