What is the function of beta-galactosidase in the lac operon?

What is the function of beta-galactosidase in the lac operon?
  1. Transport of lactose into the cell
  2. Hydrolysis of lactose into its monomeric units
  3. Inactivation of the repressor protein
  4. Transcription of the operon

Solution

The z gene codes for beta-galactosidase (β-gal), which is primarily responsible for the hydrolysis of the disaccharide, lactose into its monomeric units, galactose and glucose.

Asked in: NCERT

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