Will there be active synthesis of beta-galactosidae in the cell if both glucose and lactose are present?

Question

Will there be active synthesis of beta-galactosidae in the cell if both glucose and lactose are present?

Answer 1

I'm guessing you're talking about the lac-operon.

In the simplest sense, if glucose is present then the genes required for digesting lactose are not expressed. Check the link if you require more detail.