Chapter 15 - Mo Bio Flashcards _ Quizlet

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12/20/23, 1:23 AM Chapter 15 - Mo Bio Flashcards | Quizlet https://quizlet.com/243636530/chapter-15-mo-bio-flash-cards/ 1/11 Chapter 15 - Mo Bio 9 studiers from Ryerson University 5.0 (2 reviews) Students also viewed Terms in this set (44) Try Magic Notes and save time Upload notes Molecular Bio Test #4 19 terms kgoldsborough1 Preview Ch 15 TopHat Teacher 15 terms william613 Preview Test Four Molecular Biology 312 144 terms leah_marie_sawyer Preview Molecular B 27 terms shelby_r Transcription is defined as: A. the production of a strand of RNA with a sequence identical to the DNA template. B. the production of a strand of DNA with a sequence identical to the RNA template. C. the production of an exact complementary strand of RNA on a DNA template. D. the production of an exact complementary strand of DNA on a RNA template. E. the production of an exact complementary strand of RNA on a RNA template. C. the production of an exact complementary strand of RNA on a DNA template. The general name for enzymes that catalyze RNA synthesis directed by a DNA template is: A. RNA synthetase. B. RNA polymerase. C. polynucleotide phosphorylase. D. RNase. E. DNA polymerase. B. RNA polymerase. 4 New achievement earned! You hit a 4-day study streak
12/20/23, 1:23 AM Chapter 15 - Mo Bio Flashcards | Quizlet https://quizlet.com/243636530/chapter-15-mo-bio-flash-cards/ 2/11 Which of the following characteristics of DNA- dependent DNA synthesis is not the same for DNA-dependent RNA synthesis? A. Synthesis requires a template. B. Initiation involves the recognition of a specific DNA sequence. C. Initiation of synthesis requires a primer. D. Synthesis is catalyzed in the 5' to 3' direction. E. All of the choices given are the same for both DNA and RNA synthesis. C. Initiation of synthesis requires a primer. Which of the following characteristics of transcription is the same for DNA replication? A. The process has distinct initiation, elongation, and termination phases. B. Just one of the two strands of a DNA segment serves as a template. C. Only certain genes serve as templates at any given time. D. Nascent strands dissociate from the template. E. All of the choices given are the same for both transcription and DNA replication. A. The process has distinct initiation, elongation, and termination phases. Which of the following is not true of the reaction catalyzed by RNA polymerases? A. Template DNA is copied in the 3' to 5' direction. B. The 3'-hydroxyl group of the growing RNA strand is a nucleophile. C. The reaction is magnesium ion-dependent. D. U residues are incorporated into the RNA to pair with T residues of the template. E. The RNA molecule is synthesized in the 5' to 3' direction. D. U residues are incorporated into the RNA to pair with T residues of the template. Which of the following eukaryotic RNA polymerases is responsible for transcribing nearly all protein-coding genes? A. RNA polymerase I B. RNA polymerase II C. RNA polymerase III D. RNA polymerase IV E. a complex of RNA polymerase II and III B. RNA polymerase II Learn 4 New achievement earned! You hit a 4-day study streak
12/20/23, 1:23 AM Chapter 15 - Mo Bio Flashcards | Quizlet https://quizlet.com/243636530/chapter-15-mo-bio-flash-cards/ 3/11 Which of the following eukaryotic RNA polymerases is responsible for transcribing ribosomal RNAs (rRNAs)? A. RNA Pol I B. RNA Pol II C. RNA Pol III D. RNA Pol I and RNA Pol III E. RNA Pol II and RNA Pol III D. RNA Pol I and RNA Pol III Which of the following is not a component of the bacterial RNA polymerase core enzyme? A. subunit Beta B. subunit Alpha C. subunit Sigma D. subunit W E. subunit B' subunit Sigma The sequence of the messenger RNA molecule (primary transcript) synthesized from a DNA molecule with a coding strand having the sequence 5' ATGCTACCGTTA is: A. 5' UACGAUGGCAAU. B. 5' UAACGGUAGCAU. C. 5' AUGCUACCGUUA. D. 5' AUUGCCAUCGUA. E. None of the choices given is correct. C. 5' AUGCUACCGUUA. Which of the following is not true of the coding strand of DNA? A. Its sequence is the complement of the primary transcript. B. Its sequence is the complement of the template strand. C. It may be located in either strand of a given chromosome. D. It is also known as the nontemplate strand. E. Its sequence is the complement of the strand of DNA copied during transcription. A. Its sequence is the complement of the primary transcript. Learn 4 New achievement earned! You hit a 4-day study streak
12/20/23, 1:23 AM Chapter 15 - Mo Bio Flashcards | Quizlet https://quizlet.com/243636530/chapter-15-mo-bio-flash-cards/ 4/11 What is the correct order of transcriptional events occurring after RNA polymerase binds to the promoter? A. start of RNA synthesis, open complex formation, closed complex formation, promoter clearance B. closed complex formation, open complex formation, promoter clearance, start of RNA synthesis C. closed complex formation, open complex formation, start of RNA synthesis, promoter clearance D. open complex formation, closed complex formation, start of RNA synthesis, promoter clearance E. open complex formation, closed complex formation, promoter clearance, start of RNA synthesis C. closed complex formation, open complex formation, start of RNA synthesis, promoter clearance Which of the following molecules inhibits bacterial transcription by prevention of promoter clearance? A. Alpha-amanitin B. actinomycin D C. rifampicin D. acridine E. ethidium bromide C. rifampicin Which of the following does not contribute to the efficiency with which E. coli RNA polymerase binds to a promoter? A. the sequence of the upstream promoter element B. the binding of a sigma subunit C. the sequence at the +10 region D. the sequence at the -35 region E. the distance between the consensus sequence and the transcriptional start site C. the sequence at the +10 region What is the function of the SIGMA subunit of E. coli RNA polymerase in transcription? A. It contains the polymerase active site. B. It contains the separate exonuclease site required for proofreading. C. It directs the polymerase to bind a specific type of promoter sequence. D. It signals the polymerase to terminate transcription at specific sites. E. It allows template-independent RNA synthesis. C. It directs the polymerase to bind a specific type of promoter sequence. Learn 4 New achievement earned! You hit a 4-day study streak
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