$A$: $Lac$ operon exerts negative control only.
$R$: The operator is occupied by aporepressor during regulation.
$R$: The operator is occupied by aporepressor during regulation.
- AAssertion and Reason both are correct and Reason is the correct explanation of Assertion.
- BAssertion and Reason both are correct but Reason is not the correct explanation of Assertion.
- CAssertion is correct,but Reason is incorrect.
- DBoth Assertion and Reason are incorrect.
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Similar Questions
Define the following terms: Regulator gene and Promoter gene.
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View SolutionIdentify the $INCORRECT$ statement with reference to the regulation of gene expression.
The $lac$ operon is a part of which of the following?
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View SolutionGiven below are two statements:
Statement $I$: In lac operon,the repressor protein binds to the promoter region of the operon and prevents $\text{RNA}$ polymerase from transcribing the operon.
Statement $II$: Regulation of lac operon can also be visualized as regulation of enzyme synthesis by its substrate.
In the light of the above statements,choose the correct answer from the options given below:
Statement $I$: In lac operon,the repressor protein binds to the promoter region of the operon and prevents $\text{RNA}$ polymerase from transcribing the operon.
Statement $II$: Regulation of lac operon can also be visualized as regulation of enzyme synthesis by its substrate.
In the light of the above statements,choose the correct answer from the options given below:
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