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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. The lac repressor has which of the following DNA-binding motif?
2. If lactose and glucose are provided in the growth medium of a culture of E. coli ____________
3. Which of the following takes place when tryptophan levels are high?
4. Which of the following is the most appropriate definition of an operator?
5. Whose interaction with Lex-A facilitates the repressor’s self-cleavage reaction?
6. The mechanism by which CBP activates transcription is?
7. Which out of the following is not an example of an inducible operon?
8. Where does a repressor bind an operon?
9. Lactose utilization by E. coli requires ____________
10. Which of the following bacterial operon is not controlled by attenuation?
11. Which of the following takes place when tryptophan levels are low?
12. The lactose repressor is encoded by ____________
13. Which of the following statements is not correct?
14. Which of the following statements regarding the regulation of trp operon expression by attenuation is correct?
15. When DNA segment is in one orientation ____________
16. Which of the following encodes recombinase?
17. Which of the following about mRNA stability is not correct?
18. Which of the following is not an example of housekeeping genes?
19. Which of the following are the structural motifs that mediate protein-protein interactions?
20. Which of the following is not required for the expression of genes in the lactose operon?
21. CAP is ____________
22. Attenuator sequences base-pair to form a stem-and-loop structure rich in ____________
23. Formation of the attenuator stem-and-loop structure depends on the events that occur during translation of ____________
24. RNAi stands for ____________
25. Which of the following regulatory sequence allows transcription to continue?

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