Biology of Cells Questions

Posted on 2013-11-25 15:52:00 in Biology by HCBIO

1. Which eukaryotic polymerase synthesizes mRNA, miRNA and some small RNAs? (a) RNA Pol I (b) RNA Pol II (c) RNA Pol III (d) DNA Pol 2. For genes encoding protein, which of the following is the eukaryotic consensus sequence of the promoter? (a) TATA (b) ATAT (c) CGCG (d) GCGC 3. Transcriptional activators and repressors bind to enhancers that can be thousands of nucleotides away from the gene being regulated. (a) True (b) False 4. Which of the following is FALSE about introns? (a) They lie between exons. (b) They encode RNA but not protein. (c) They are found in both prokaryotes and eukaryotes. (d) They are removed in the nucleus.

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