Which enzyme is coded for in the chromosome of bacteria.

A: beta-galactosidase

B: glucose

C: lactose

D: galactose

The right answer here is obviously A: beta-galactosidase.

Enzymes are proteins that are coded by organism's gene. they have catalytic properties.

The other propositions are not enzymes, not even proteins, and cannot be coded. Genes code only for proteins, not sugars nor fats.

The right answer is be ta-galactosidase