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

ID: 41268 • 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, inactive activator.

negative control in a repressible operon

2   

positive control in a repressible operon

negative control in an inducible operon

positive control in an inducible operon

inactive activator

active activator

inactive repressor

active repressor

1

negative control in a repressible operon

2   

positive control in a repressible operon

3

negative control in an inducible operon

4   

positive control in an inducible operon

A.

inactive activator

B.

active activator

C.

inactive repressor

D.

active repressor

Explanation / Answer

3. negative inducible= active repressor

4 positive inducible= inactive activator

1 negative repressible= inactive repressor

2 positive repressible=active activator.