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How does a repressor work?

Updated: 9/19/2023
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Q: How does a repressor work?
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Describe the effect a repressor has on the lac operon when lactose is present?

When lactose is present, the lactose binds to the repressor and changes the shape of the repressor.


What state is the repressor protein in when tryptophan is absent?

The repressor protein is inactive.


What is an analogy that demonstrates how the lac repressor functions?

Think of the repressor as an on off switch for radio


When this is taken up by the cell it binds to the repressor so that the repressor no longer binds to the operator?

The inducer.


A protein that binds to an operator and inhibits transcription?

A repressor protein, also called an Inhibitor.


The operon segment composed of the gene that codes for a protein repressor is called the?

The operon segment composed of the gene that codes for a protein repressor is called the regulatory gene. This gene produces the repressor protein that can bind to the operator region of the operon, preventing transcription of the structural genes when the repressor is bound.


A repressor protein binds with?

The regulator


Where is the repressor structure coded?

operon


A lac repressor turns ff the lac genes by binding to?

A lac repressor turns off the lac genes by binding to the operator


What region of the operon does the repressor bind to?

I assume you mean the lac operon. The repressor binds upstream of the gene(s) in the regulatory gene region.


When is the repressor protein transcribed?

It is always transcribed.


What is an aporepressor?

An aporepressor is a repressor which binds with a corepressor.