The product of the lacI gene is most like a car's _____.
A)parking brake
B)accelerator pedal
C)steering wheel
D)engine
E)gear shift

Question

Quizplus · Accepted Answer

The lacI gene encodes for the lac repressor protein, which binds to the operator site of the lac operon to prevent transcription of the genes required for lactose metabolism. This function is similar to a car's parking brake, which prevents the car from moving.

The Product of the LacI Gene Is Most Like a Car's