Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 18 - 18.1 - Concept Check - Page 368: 3

Answer

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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