5 …

Briefly describe how you would screen
E. colimutants that cannot utilize lactose as an energy

Question

5. Briefly describe how you would screen E. colimutants that cannot utilize lactose as an energy

source. (You are given a test tube containing E. coligrown under full nutrition, a spreader, fier paper, Petri plates with agar gel containing various nutrients, and an incubator. There are three kinds of Petri plates provided: agar gel was made with either inorganic sa + glucose [plate A], or inorganic sa + lactose [plate B], or inorganic sa only [plate C]).