E2 F12 answer key

The incoming substrate first binds at the entry site

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Unformatted text preview: the incoming substrate first binds at the entry site, then rotates into the active site where it base pairs with template DNA and the RNAP II tightens its active site e. RNA synthesized in the 5/-> 3/ direction 6 25. Which of the following statements about the C-terminal domain (CTD) of subunit Rpb1 of mammalian RNAP II is NOT correct? a. it provides a binding site for the mRNA capping enzyme b. it contains 52 highly conserved repeats with the consensus sequence, Pro-Thr-Ser-Pro-Ser-Tyr-Ser c. the CTD must be phosphorylated for transcription elongation to start d. phosphorylated CTD provides a binding site for cleavage and polyadenylation specificity factor e. the phosphorylated CTD provides the major binding site for TFIIB 26. BRE, TATA, Inr, MTE, and DPE and are all: a. general transcription factors b. specialized transcription factors c. housekeeping genes d. core promoter elements for RNA polymerase II e. prokaryotic Pribnow box elements 27. Which of the following statements about the protein shown below is NOT correct? a....
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