Campbell Biology in Focus
Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 27.7, Problem 3CC
Summary Introduction

To predict:

In what way the gene flow, genetic drift, and extinction risk would differ between the original and the remnant populations.

Concept introduction:

Gene flow is the transfer of genes or alleles from one population to another.

Genetic drift is the change in allele frequency of a population due to chance events. It is more likely to occur in a small population than a larger population. It decreases the genetic variability of a population.

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MAke ConneCtIonS Suppose that a sudden changein environmental conditions caused a substantial dropin a population’s carrying capacity. Predict how naturalselection and genetic drift might affect this population.(See Concept 23.3.)
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