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Which of these is a constitutive mutant? a. lacI- b. lacOc c. lacIs d. All of...

Which of these is a constitutive mutant?

a. lacI-

b. lacOc

c. lacIs

d. All of the above

e. Both A & B

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Answer #1

Ans -e

lacl-

lacOc

these two are constructive mutant of lac operone

they fail to stop lac operone In constitutive media lacking lactose

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