Exam 26: Transcription and Rna Processing

Matching Choose the correct answer from the list.Not all the answers will be used. -The DNA strand that serves as a template during transcription is known as the ______ or noncoding strand.

In prokaryotes,the _____ factor recognizes base sequences in the _____ which facilitates RNA polymerase binding and initiates RNA synthesis.

Imagine that a new drug is proposed which is hypothesized to selectively bind the transcription factor TBP.Which of the following would be affected? (I)RNA polymerase I (II)RNA polymerase II (III)RNA polymerase III (IV)E.coli RNA polymerase

Which of the following eukaryotic proteins are encoded by genes which have no known introns?

Matching Choose the correct answer from the list.Not all the answers will be used. -CpG islands function analogously to prokaryotic ______.

Transcriptional activators that can have variable positions and orientations are called

Which of the following is required for correct translation in eukaryote initiation?

Why is TBP referred to as a universal transcription factor? (I)TBP is present in both prokaryotic and eukaryotic organisms. (II)TBP catalyzes the initiation of all RNA polymersase in both prokaryotes and eukaryotes. (III)TBP is required for initiation by RNAP I,RNAP II,and RNAP III.

What function is accomplished by snoRNAs?

Which of the following would result in the tightest binding association between E.coli RNA polymerase and DNA?

Which of the following describes the cap nucleotide linkage on a eukaryotic mRNA? (I)5'→5' linkage (II)5'→3' linkage (III)3'→5' linkage (IV)3'→3' linkage

Matching Choose the correct answer from the list.Not all the answers will be used. -Termination of bacterial transcription requires the ______ factor.

Which of the following DNA sequences would most likely result in transcription termination?

Matching Choose the correct answer from the list.Not all the answers will be used. -In eukaryotes,RNA polymerase does not include a removable ______ factor.

E.coli RNA polymerase contains multiple subunits,which of the following combinations would result in promoter recognition but no RNA synthesis?

Which of the following statements best describes the role of $\sigma$ factors in bacterial gene expression?

Which is TRUE regarding structure and function of RNAPII? (I)Distortion of the DNA by ~90° isolates the template base such that it can be properly paired. (II)The "clamp" moves over the DNA increasing processivity. (III)RNAPII accomplishes proofreading by forcing mispaired nucleotides against the "wall" causing distortion such that mispairs can be cleaved by the "rudder."

Which of the following best describes the function of poly(A)tails for eukaryotic mRNAs?

All cellular RNAs are transcribed from

What is abortive initiation of transcription by RNA polymerase?