The enzyme b-galactosidase is encoded by
A) lacA.
B) lacy.
C) lacZ.
D) lacI.
E) both lacA and lacY.

Name: The enzyme b-galactosidase is encoded by A) lacA. B) lacy. C) lacZ. D) lacI. E) both lacA and lacY.
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Question

Quizplus · Accepted Answer

The enzyme beta-galactosidase is encoded by the lacZ gene in the lac operon in E. coli. The lacZ gene codes for the enzyme that breaks down lactose into glucose and galactose. The other genes in the lac operon are lacY, which codes for lactose permease, and lacA, which codes for transacetylase.

The Enzyme B-Galactosidase Is Encoded by