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 (10th Edition)
by Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Published by
Pearson
ISBN 10:
0321775651
ISBN 13:
978-0-32177-565-8
Chapter 18 - Test Your Understanding - Level 1 - Knowledge/Comprehension - Page 390: 3
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