Which of the following catalyzes the synthesis of ribosomal RNA in eukaryotes? a. RNA polymerase I b. RNA polymerase II c. RNA polymerase III d. Both RNA polymerase I and II e. Both RNA polymerase I and III Which of the following allows the RNA polymerase II to interact with enhancers and silencers? a. Mediator b. TFIIB c. TFIID d. Sigma factors e. None of the answers are correct Telomeres a. normally terminate with 3' single-stranded DNA overhangs that fold back into structures known as T loops b. are often composed of guanine-rich arrays that consist of six- to eight base pair long repeats c. can shorten in humans after multiple DNA replications d. all of the above e. a and b only Does DNA polymerase 1 contain multiple subunits? The role of the eukaryotic nuclear scaffold includes a. determining the shape of the metaphase chromosome b. determining the chromosome territories c. translation of mRNA d. a and b only e. none of the above
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Which of the following is/are products of eukaryotic RNA polymerase II? a. snRNA b. mRNA c. tRNA d. siRNA Which of the following statements regarding E. coli RNA polymerase (RNAP) is NOT correct? a. The E. coli RNAP core enzyme requires the sigma factor for promoter site recognition. b. Tight binding of the RNAP core enzyme to template DNA stabilizes the ternary enzyme-DNA-RNA complex. c. The E. coli RNAP holoenzyme is composed of the core enzyme and a subunit termed the sigma factor. d. The sigma factor is required by the RNAP core enzyme for accurate transcription.
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22) RNA polymerase is required for: transcription b) replication translation b and c e) all of the above 23) Metabolites can regulate the following: a) translation b) transcription c) replication d) b and c e) all of the above 24) Amino acids are polymerized during: a) translation b) replication c) transcription d) b and c e) all of the above 25) Nucleotides are polymerized during: a) translation b) replication c) transcription d) b and c e) all of the above 26) Cell growth can be measured by: a) translation b) replication c) transcription d) b and c e) all of the above 27) Which of the following involves proteins binding to DNA: a) DNA synthesis b) protein synthesis c) RNA synthesis d) a and c e) none of the above 28) Which of the following is regulated by an operator: a) DNA synthesis b) protein synthesis c) RNA synthesis d) b and c e) all of the above
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All of the following are true of DNA polymerase except: Select one: a. It reads the DNA template from 3'→5' b. It is a significant cause of mutations c. It has proofreading ability d. It synthesizes DNA from 3'→5' e. It adds complementary nucleotides to the growing DNA strand 2. If there are 8 chromosomes in a somatic cell of a diploid female Drosophila melanogaster fruit fly, there would be (4,8,16,32) chromosomes and (4,8,16,32) chromatids in a cell in G1. (choose 1) 3. Certain cancer medications are S-phase specific. These types of medications would target enzymes involved in: Transcription Translation DNA replication Mitosis Select one: a. 3 only b. 1 and 2 c. 1 only d. 1, 2 and 3 e. 4 only
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