In the Lactose Operon of E

question 137

Multiple Choice

In the lactose operon of E. coli, which of the following genotypes transcribes the lacZ and lacY genes constitutively?

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

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