Home
Class 12
BIOLOGY
Assertion :- Lac opertor is present only...

Assertion :- Lac opertor is present only in lac operon & it interact specifically with lac repressor only.
Reason : Each operon has its specific operator & specific repressor.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is Flase.

D

If both Assertion & Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Repressor of lac-operon

In lac-operon , which protein is not regulated by the repressor?

Regulation of lac operon by repressor is called

In the following questions , a statement of assertion (A) is followed by a statement of reason (R). A: Each operon has its specific operator. R : Lac operator is present in the lac operon and it interacts specifically with structural genes.

In Lac-operon, repressor protein binds to

Assertion : When the speed of an electron increases its specific charge decreases. Reason : Specific charge is the ratio of the change to mass.

A : Lac operon exerts negative control only. R: The operator is occupied by aporepressor during regulation.

Assertion : Lac operon is a repressible operon. Reason : The product of gene activity stops the activity of the said gene.

Assertion (A): Lactose is the substrate for the enzyme beta-galactosidase and it regulates switching on and off of the lac operon. Reason ( R): The lac operon consists of one regulatory gene and three structural genes.