Question

What is the molecule that triggers the synthesis of an inducible enzyme called?

Options

• The inducer

• The repressor

• The terminator

• The promoter

Answer 1

The triggering molecule that causes synthesis of an inducible enzyme is called the inducer. In the case of the lac operon in E. coli, lactose (or allolactose) acts as the inducer, binding to regulatory proteins and allowing transcription to occur.