In E Coli, an Isomer of Lactose Binds with the Lactose

question 187

Multiple Choice

In E. coli, an isomer of lactose binds with the lactose operon:

• A)repressor, preventing it from binding to the operator. This allows the lacZ and lacY genes to be transcribed.
• B)operator, preventing it from binding to the repressor. This allows the lacZ and lacY genes to be transcribed.
• C)repressor, helping it bind to the operator. This prevents the lacZ and lacY genes from being transcribed.
• D)operator, preventing RNA polymerase from being recruited. This prevents the lacZ and lacY genes from being transcribed.
• E)operator, recruiting RNA polymerase. This allows the lacZ and lacY genes to be transcribed.

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