Which Statement About Regulation of the Lac Operon Is TRUE

question 54

Multiple Choice

Which statement about regulation of the lac operon is TRUE?

• A) Glucose in the growth medium decreases the inducibility by lactose.
• B) Glucose in the growth medium does not affect the inducibility by lactose.
• C) Glucose in the growth medium increases the inducibility by lactose.
• D) Its expression is regulated mainly at the level of translation.
• E) The lac operon is fully induced whenever lactose is present.

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