In E. coli cells when lactose is absent from the environment,
A. large amounts of b-galactosidase, lactose permease, and galactosidetransacetylase are made.
B. trace amounts of b-galactosidase, lactose permease, and galactosidetransacetylase are made.
C. no b-galactosidase, lactose permease, andgalactosidetransacetylas are made.
D. the lac operon is induced.
E. polycistronic mRNA levels would be very high.
B. trace amounts of b-galactosidase, lactose permease, and galactosidetransacetylase are made.
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