Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 18 - 18.1 - Concept Check: 3


If active repressor cannot bind, it would be as if lactose was always present. This means that the lac operon would always be expressed, leading to constitutively high levels of B-galactosidase.

Work Step by Step

This shows how a mutation can mimic a biochemical signal since the biochemical signal is usually mediated through a genetic system.
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