[Solved] A Mutant E

Question 24
Multiple Choice

A mutant E.coli strain, grown under conditions that normally induce the lac operon, produces high amounts of -galactosidase.What is a possible genotype of the cells?

A)lacI+ lacP+ lacO+ lacZ- lacY+ lacA+
B)lacI+ lacP+ lacOc lacZ+ lacY+ lacA+
C)lacI- lacP+ lacO+ lacZ- lacY+ lacA+
D)lacI+ lacP- lacO+ lacZ+ lacY+ lacA+
E)lacI- lacP- lacO+ lacZ- lacY+ lacA-

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