In the Operon concept,the regulator gene regu | vedclass

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(B) In the Operon model,the regulator gene codes for a protein called the repressor protein.This repressor protein binds to the operator site of the o

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Inhibiting transcription of $mRNA$

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(B) In the Operon model,the regulator gene codes for a protein called the repressor protein.This repressor protein binds to the operator site of the operon.When the repressor is bound to the operator,it physically blocks $RNA$ polymerase from transcribing the structural genes into $mRNA$.Therefore,the regulator gene controls the expression of the operon by inhibiting the transcription of $mRNA$.

In the Operon concept,the regulator gene regulates chemical reactions in the cell by:

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The end product of a metabolic pathway binds to the operator to make it more active,so that it can easily bind with the repressor. In this case,the end product is called a/an ......

In which of the following are monocistronic genes found?

How is the $lac$ operon regulated by the repressor?

Statement $I$: Lac operator is present only in $lac$-operon and it interacts specifically with $lac$-repressor only.
Statement $II$: Each operon does not have a specific operator and a specific repressor.

The $Lac-Operon$ model was elucidated by

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