why is the lac operon said to be an inducible operon? view available hint(s)for part a why is the lac operon said to be an inducible operon? when activated, the lac operon induces the production of lactose-digesting enzymes. when activated, the lac operon induces repression of gene expression. when allolactose is present, it induces the activation of the lac repressor. when allolactose is present, it induces repression of gene expression. when allolactose is present, it induces the inactivation of the lac repressor.