Control of the Lac Operon and Lactose Utilization in Bacteria

question 58

Multiple Choice

Control of the lac operon and lactose utilization in bacteria is (check all that apply)

• A)not induced in the presence of both glucose and lactose.
• B)only induced when there is glucose but not lactose.
• C)is a negative control,mediated by a repressor.
• D)controlled by the expression of three downstream genes.
• E)preferentially utilizing lactose as a carbon source.

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