Biology Help! Allolactose -related.

Question

Allolactose induces the synthesis of the enzyme lactase. An E. coli cell is presented for the first time with the sugar lactose (containing allolactose) as a potential food source. Which of the following occurs when the lactose enters the cell?

a Allolactose binds to the regulator gene.

b Allolactose binds to the repressor protein.

c The repressor protein and allolactose bind to RNA polymerase.

d The repressor protein attaches to the regulator.

e RNA polymerase attaches to the regulator.

Answer 1

I would say B, because when it attaches to a repressor protein, it will cause it to change it's shape because all the bonds will have different charges which will stop if from functioning as a repressor and cause the production of the enzyme lactase which is what the questions says allolactose does.

This is just an educated guess, I do not know for sure.