Some Lac Operon Mutations Allow for Beta Galactosidase to Be

question 8

Multiple Choice

Some lac operon mutations allow for beta galactosidase to be expressed constitutively even in the absence of lactose.Which of the following lac genotypes would allow for this constitutive expression?

• A)I⁺ P⁺ O⁺ Z^- Y⁺ A⁺
• B)I^s P⁺ O⁺ Z⁺ Y⁺ A⁺
• C)I⁺ P^- O⁺ Z⁺ Y⁺ A⁺
• D)I⁺ P⁺ O^c Z⁺ Y⁺ A⁺
• E)I⁺ P⁺ O⁺ Z⁺ Y⁺ A⁺

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Definitions:

Positive Correlation

A relationship between two variables in which both variables move in tandem, such that as one variable increases, the other variable also increases.

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