Which of the Following Statements Is True About the Lac

question 14

Multiple Choice

Which of the following statements is true about the lac operon?

• A)The lac operon is usually turned off in the presence of lactose.
• B)The lac operon is usually turned on in the presence of any sugar.
• C)The lac operon is usually turned on in the presence of glucose.
• D)The lac operon is usually expressed continuously in the cell.
• E)The lac operon is usually turned on in the presence of lactosE.

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