What is the function of the lacZ gene?

a. This gene encodes an enzyme, galactoside permease, which transports lactose into the cell.

b. This gene encodes an enzyme, b-galactosidase, that cleaves lactose into two glucose molecules.

c. This gene encodes an enzyme, b-galactosidase, which cleaves lactose into glucose and galactose.

d. This gene encodes the repressor of the lac operon.

Question

Biology

Averi Phelps

29 July, 07:22

What is the function of the lacZ gene?

a. This gene encodes an enzyme, galactoside permease, which transports lactose into the cell.

b. This gene encodes an enzyme, b-galactosidase, that cleaves lactose into two glucose molecules.

c. This gene encodes an enzyme, b-galactosidase, which cleaves lactose into glucose and galactose.

d. This gene encodes the repressor of the lac operon.

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Answers (1)

Know the Answer?

Hanna Baker · Answer 1

the answer is c

Explanation:

The lacZ gene encodes an enzyme called β-galactosidase, which is responsible for splitting lactose (a disaccharide) into readily usable glucose and galactose (monosaccharides). The lacY gene encodes a membrane protein called lactose permease, which is a transmembrane "pump" that allows the cell to import lactose.