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: 2



Work Step by Step

Natural selection will match natural conditions (B.), and C. can be eliminated since variation is always needed for natural selection to act. There is nothing in the question to suggest frequency-dependent selection (A.). and D. is wrong because B. is correct.
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