Questions
What happens when allolactose is present in the medium and carbon source like glucose is missing in the medium?
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a
Lac operon is switched off
b
Lac operon is switched on
c
Promoter site of lac operon is permanently damaged.
d
Lac operon is destroyed because of toxicity of allolactose.
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Correct option is B
Allolactose is an inducer of the lac operon and in its presence the lac operon is switched on.Similar Questions
Number of regulatory and structural genes present in lac operon are
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