試題詳解

14. Choose one wrong statement from the followings regarding eukaryotic transcription?
(A) In flowing plants, RNA polymerase IV and V are involved in gene silencing, which are performed by RNA polymerase II in other eukaryotes.
(B) TFIIA can interfere with the interaction between TAF1 of RNA polymerase II N-terminal domain & DNA-binding surface of TBP, freeing up TATA-binding protein (TBP) for promoter binding.
(C) Rpb10 and Rpb12 are common subunits in all three yeast polymerases.
(D) An enhanceosome is a collection of DNA sequences (enhancers) that can enhance transcription by themselves.

(E) The incoming nucleotide first encounters the E ("entry") site and the "A" site of RNA polymerase II is where a phosphodiester bond forms.