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Genes in Populations

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So far, we have talked about the behavior of genes that are passed from one generation to the next, focusing on the genotypes and phenotypes of individuals. Now we'll take a broader look at genetics and see how the genetics of populations are studied. As you will learn, evolutionary change takes place through changes in the genetic composition of a population. The field of population genetics spans the disciplines of genetics and evolution. By the end of this tutorial you should have a working understanding ofbe able to describe:

  • Population genetics
  • Species definitions
  • How genetic variation in a population is studied
  • The Hardy-Weinberg equation
  • The factors that influence changes in allele frequencies

Performance Objectives

  • Describe You should be able to describe the assumptions of a population in Hardy-Weinberg equilibrium
  • Apply You should be able to apply the appropriate Hardy-Weinberg equations equation (solving for either allele and/or genotype frequency) to solve population genetics problems

As you read through the tutorial, answer the questions on the lecture preparation homework (click here to access the homework).