7
QuizMultiple Choice
Unit Test
Question 7 of 37 • Biology A
James is working with the lac operon of Escherichia coli (E. coli). He places the bacteria on a plate of growth media. Based on the current understanding of this operon, which hypothesis would be useful for James to test?
Answer
A
Addition of allolactose (inducer) to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose.B
Removal of the RNA polymerase molecule should increase the amount of bacterial growth on the plate.C
Decreasing the amount of allolactose (inducer) in the bacterial growth media should increase the rate of bacterial growth.D
Increasing the rate at which RNA polymerase acts will inhibit bacterial growth.