Answer
B
Work Step by Step
C and D are wrong since they take place well after enhancers have their effects, and A can be eliminated since it does not involve many prokaryotic phenomena such as operons.
Campbell Biology (12th Edition)
by Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Published by
Pearson
ISBN 10:
0135188741
ISBN 13:
978-0-13518-874-3
Chapter 18 - Test Your Understanding - Levels 1-2 - Remembering/Understanding - Page 396: 3
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