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Population Bottlenecks: Heterozygosity vs. Allelic Diversity

Author(s): Lou Gross1, Monica Beals1, Susan Harrell1

University of Tennessee Knoxville

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Summary:
This module introduces heterozygosity and allelic diversity in the context of understanding population bottlenecks. It is intended for an introductory biology audience.

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms

Version 1.0 - published on 15 Feb 2019 doi:10.25334/Q4MJ0F - cite this

Keywords

  1. Ratios
  2. exponential equations
  3. Algebra
  4. Genetics and Evolution

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Description

Student Introduction: Temporary but significant reductions in population size are referred to as population bottlenecks. The effects can vary depending on both the size to which the population is reduced and the duration of the bottleneck (i.e., the number of generations). Limited population size can lead to a loss of genetic variation and subsequent loss of evolutionary potential.

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