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Chapter 8: Regulation of Gene Expression

Chapter 8: Regulation of Gene Expression. Question: When an inducer binds to the repressor, _______________. the genes are transcribed the genes are not transcribed the repressor binds to the operator the repressor binds to the promoter. Chapter 8: Regulation of Gene Expression.

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Chapter 8: Regulation of Gene Expression

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  1. Chapter 8: Regulation of Gene Expression Question: When an inducer binds to the repressor, _______________. • the genes are transcribed • the genes are not transcribed • the repressor binds to the operator • the repressor binds to the promoter

  2. Chapter 8: Regulation of Gene Expression Question: What is true when E. coli is grown in media containing glucose? • CRP is bound at the CAP binding site • there is plenty of cyclic AMP available • the lactose operon is fully transcribed • cyclic AMP is not synthesized and is transported out of the cell

  3. Chapter 8: Regulation of Gene Expression Question: Which of the following is true when E. coli is grown in media containing both glucose and lactose? • CRP is bound to the CAP binding site • the lactose repressor is not bound to the operator • there is plenty of cyclic AMP to bind to CRP • the lactose metabolism genes are fully expressed

  4. Chapter 8: Regulation of Gene Expression Question: In E. coli, when tryptophan is in excess _______________. • the leader sequence is fully translated • a 3,4 stem loop structure forms in the mRNA • transcription of the tryptophan operon terminates early • all of the above

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