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Biochemistry Practice Test Questions: Regulation of Gene Expression
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Regulation of gene expression, or gene regulation, includes a wide range of mechanisms that are used by cells to increase or decrease the production of specific gene products.

Topics covered include:  Principles of Gene Regulation, & Regulation of Gene Expression in Prokaryotes.

Biochemistry Practice Test Questions: Regulation of Gene Expression
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25 Questions

1. Which of the following statements regarding the regulation of trp operon expression by attenuation is correct?
2. Which of the following encodes recombinase?
3. Which of the following statements is not correct?
4. Which of the following is not required for the expression of genes in the lactose operon?
5. Which of the following about mRNA stability is not correct?
6. CAP is ____________
7. Which of the following statements about lac operon in e.coli is true?
8. The lactose repressor is encoded by ____________
9. To which class of transcription factor do nuclear receptors belong?
10. Trp repressor is a ____________
11. The mechanism by which CBP activates transcription is?
12. Which out of the following is not an example of an inducible operon?
13. Which of the following takes place when tryptophan levels are high?
14. Which of the following is the most appropriate definition of an operator?
15. Which of the following are the structural motifs that mediate protein-protein interactions?
16. Formation of the attenuator stem-and-loop structure depends on the events that occur during translation of ____________
17. Which of the following takes place when tryptophan levels are low?
18. When DNA segment is in one orientation ____________
19. Which of the following regulatory sequence allows transcription to continue?
20. RNAi stands for ____________
21. Which of the following is not an example of housekeeping genes?
22. Which of the following increases gene expression as much as 200-fold?
23. Attenuator sequences base-pair to form a stem-and-loop structure rich in ____________
24. Which of the following bacterial operon is not controlled by attenuation?
25. Lac repressor dissociates from its operator when the repressor binds to ____________

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