Lac operon

Can you repeat the steps in gene regulation for the lac operon?

The lac operon is an inducible operon, meaning that it is off by default but can be turned on. When lactose is present in the environment of the bacterium, an inducer binds to the repressor molecule attached to the operon, making it inactive. This enables RNA Polymerase to access the operon, transcribing its genes, which code for enzymes needed to break down lactose.

1 Like
Fiveable Logo

2550 north lake drive
suite 2
milwaukee, wi 53211



about for students for parents for teachers for schools & districts content team privacy contact


🥇 2020 Fiveable Olympics study plans upcoming events trivia hypertyper resources cram passes


community tiktok discord twitter instagram facebook careers

*ap® and advanced placement® are registered trademarks of the college board, which was not involved in the production of, and does not endorse, this product.

© fiveable 2020 | all rights reserved.