Enzyme repression as the control mechanism in the synthesis of induced beta-galactosidase

IT is known that the mechanism controlling the level (synthesis) of the constitutive enzymes in cells is enzyme repression1. An early example for enzyme repression was the inhibition of the synthesis of constitutive β-galactosidase by lactose or galactose2. In the present investigation I have examined the regulation of the synthesis of induced β-galactosidase.