Biology 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078024269
ISBN 13: 978-0-07802-426-9

Chapter 13 - Regulation of Gene Expression - Assess - Page 243: 1

Answer

E

Work Step by Step

When lactose is present but glucose is absent, cAMP accumulates and bonds to CAP protein, which facilitates the bonding of RNA polymerase to the promotor. This leads to the transcription of structural genes of the lac operon.
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