Question

Which is the prototype operon in bacteria?

Answer 1

Lac operon:

1. The lactose operon is a bacterial prototype operon that encodes the genes ('i', z, y, a) involved in lactose metabolism.
2. Operon repressors are synthesized from the 'i' gene.
3. The gene 'i' encodes a repressor, and z encodes β-galactosidase, 'y' is permease, and a is transacetylase.