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 (11th Edition)
by Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Published by
Pearson
ISBN 10:
0-13409-341-0
ISBN 13:
978-0-13409-341-3
Chapter 18 - Test Your Understanding - Level 1 - Knowledge/Comprehension - Page 394: 3
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