Evaluating the Effects of Natural Selection and Genetic Drift in Drosophila melanogaster
Tested Studies in Laboratory Teaching, 2011, Volume 32
Elizabeth Welsh
Abstract
This laboratory provides a "hands on" experimental approach to illustrate evolution in a semester-long study using red-eye and white-eye phenotypes of Drosophila melanogaster. Students set up and maintain small and large fly populations for several generations to observe the effects of genetic drift and natural selection. They record the phenotypes, calculate allele frequencies and at the end of the semester, submit a formal laboratory report on this experiment which includes chi-square tests, and graphs of allele frequencies, heterozygosity and Fst values. They gain valuable practical, analytical, and writing experience from this experiment.
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.Ok