question_answer

Match the column and find out the correct combination:

Gene Product Function of the product I. z-gene \[\beta \]-galactosidase Hydrolysis lactose II. y-gene Transacetylase Uptake of lactose III. a-gene Permease protein Function not known IV. Inhibitor gene Repressor protein Switch off operator gene

A) II and III

B) I and III

C) I, III, IV

D) I and IV