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Unformatted text preview: Repressor Operator mRNA a. present- not active open present b. present- not active open not present c. present- active blocked present d. present- active blocked not present e. not present- not active open present f. not present- not active open not present 3. You are able to isolate and determine the sequence of the mRNA for a protein. After much effort, you also isolated the gene (the chromosomal DNA containing the template sequence for the mRNA) and determined its sequence. In comparing the sequences, you found that the gene was 3 times as long as the mRNA. Then you wrote your PH.D. thesis. Which of the following statements might have been found in your discussion? a. The protein was found in E. coli (bacterial) cells b. The gene has 4 introns and 5 exons c. The gene has 4 introns and 4 exons d. Several separate RNA molecules must have been joined to make the mRNA e. There is no way to explain the data...
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- Winter '08