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 - Figure 20.5 - Inquiry Question: 1

Answer

Rare alleles, being rare, are quite unlikely to be found in the few individuals survivng a population bottleneck, and this are likely to be lost.

Work Step by Step

Consider the nature of a bottleneck: very few individuals survive. Since rare alleles are, more likely than not, absent in those few individuals, they will probably be lost during the bottleneck.
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