Q.

If lactose is not there in the medium then

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a

The rate of beta galactosidase formation will increase.

b

Beta galactosidase synthesis will not take place further.

c

Beta galactosidase synthesis will stop for few minutes and later rate with double the rate.

d

Beta galactosidase gene will be inactivated permanently.

answer is B.

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Detailed Solution

If the bacteria do not have lactose around them to be utilised for energy source, they would no longer require the synthesis of the enzyme beta-galactosidase.
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