Inducible Operons
About the Lecture
The lecture Inducible Operons by Georgina Cornwall, PhD is from the course Gene Regulation.
Included Quiz Questions
Which of the following is TRUE about lac operon regulation and lactose utilization in bacteria? Select all that apply.
- It is induced in the presence of lactose and the absence of glucose.
- It is a form of negative control, mediated by a repressor.
- It preferentially utilizes glucose as a carbon source.
- It is induced in the presence of glucose but not lactose.
- It preferentially utilizes lactose as a carbon source.
Which of the following is the mechanism responsible for lac operon activation, in the absence of glucose?
- cAMP-CAP complex binding to the CAP site to stimulate RNA polymerase activity on the lac operon
- cAMP-CAP complex binding on the repressor gene to stop repressor protein production
- cAMP-CAP complex binding on the promoter to stimulate DNA polymerase activity on the lac operon
- cAMP-CAP complex binding on the repressor protein to prevent its binding to the operator site of the lac operon
- Lactose-CAP complex binding on the promoter site to facilitate RNA polymerase binding on the lac operon
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Author of lecture Inducible Operons
Georgina Cornwall, PhD
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