Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 20 - Genes Within Populations - Review Questions - Understand: 3



Work Step by Step

D. is correct since all of A.-C. can confound selection in some way, A. because selection is pushed in two different directions in that choice. B. would be a case with nothing for natural selection to act upon, and C. mentions the case where genes produce multiple phenotypic effects, which could raise the same conflict as in A.
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