Question

E. coli cells grown on a mixture of glucose and lactose selectively use glucose because_____________.

A) Cyclic AMP binding a protein (CAP) is not present when glucose is present
B) No lactose repressor is made under these conditions
C) Glucose lowers cAMP which reduces the amount of CAP-cAMP
D) Lactose interferes with glycolysis

Answer 1

C) Glucose lowers cAMP which reduces the amount of CAP-cAMP.

Step-by-step explanation:

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