Regarding the lactose utilization system in E.coli,a constitutive mutant is one in which the three enzymes are produced regardless of the presence or absence of lactose.

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A constitutive mutant in the lactose utilization system of E.coli would produce the three enzymes involved in lactose metabolism (beta-galactosidase, lactose permease, and transacetylase) regardless of whether lactose is present or not. Therefore, the statement is true.

Regarding the Lactose Utilization System in E