Answer
D
Work Step by Step
A is wrong since the repressor does not interact with the promoter, and C could be true in some cases but not necessarily always. B is the opposite of the correct answer.
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 3-4 - Applying/Analyzing - Page 397: 6
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