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For each of the following types of transcriptional control, indicate whether the

ID: 178249 • Letter: F

Question

For each of the following types of transcriptional control, indicate whether the protein produced by the regulator gene will be synthesized initially as an active
repressor, inactive repressor, active activator, or inactive activator. Use the following number key to pair the statements with the correct characterization of an activator or a repressor: 1-Active repressor; 2-Inactive repressor; 3-Active activator; 4-Inactive activator

a. Negative control in a repressible operon: ____
b. Positive control in a repressible operon:_____
c. Negative control in an inducible operon:_____
d. Positive control in an inducible operon:______

Explanation / Answer

A. Inactive repressor

B.inactive activator

C. Active repressor

C. Active activator