The function of gene ‘a’ product of Lac operon is
preventing transcription by binding to operator.
hydrolysis of lactose into glucose and galactose.
transporting the lactose from the medium into cytoplasm of bacterium through plasma membrane.
detoxification of products of lactose catabolism.
Gene ‘a’ of lac operon codes for the enzyme transacetylase which is involved in detoxification of products of lactose metabolism.