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Clicker Questions 11-21 - e A primary transcript is often...

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Clicker Questions M 11/17 1. In eukaryotic cells, transcription cannot begin until a. The two DNA strands have completely separated and exposed the promoter b. Several general transcription factors have bound to the promoter c. The 5’ caps are removed from the RNA d. The DNA introns are removed from the template e. DNA nucleases have isolated the transcription unit 2. Which of the following is not true of RNA processing? a. Exons are cut out before mRNA leaves the nucleus. b. Nucleotides may be added at both ends of the RNA. c. Ribozymes may function in RNA splicing. d. RNA splicing can be catalyzed by spliceosomes.
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Unformatted text preview: e. A primary transcript is often much longer than the final RNA molecule that leaves the nucleus. 3. Which enzyme synthesizes tRNA? a. RNA replicase b. RNA polymerase c. Aminoacyl-tRNA synthetase d. Ribosomal enzymes e. ribozymes Clicker Questions F 11/21 1. Which of the following types of RNA have a catalytic function? a. rRNA b. tRNA c. mRNA d. (a) and (b) e. (a), (b), and (c) 2. Each of the following is a modification of the sentence: THECATATETHERAT Which is analogous to a frameshift mutation? a. THERATATETHECAT b. THETACATETHERAT c. THECATARETHERAT d. THECATATTHERAT e. CATATETHERAT...
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