This activity has undergone a peer review process.
This activity has undergone a peer review process by which submitted activities are compared to a set of criteria. Activities meeting or revised to meet these criteria have been added to the collection. To learn more about the review criteria, see [http://taste.merlot.org/evaluationcriteria.html]. More information about the peer review process can be found at [http://taste.merlot.org/peerreviewprocess.html].
This page first made public: Jan 16, 2007
This material was originally created for Starting Point:Introductory Geology
and is replicated here as part of the SERC Pedagogic Service.
In this biology simulation, students use a mathematical simulation of genetic drift to answer questions about the factors that influence this evolutionary process. Students run a series of simulations varying allele frequency and population size and then analyze their data and propose a model to explain their results. A second set of simulations is performed with natural selection added to the simulation.
- Students analyze data and use this data to form a model of how genetic drift works.
- Students explain how population size and allele frequency and could contribute to loss of an allele in a population.
Context for Use
Description and Teaching Materials
The students then use a second simulation that has Natural Selection for the A allele incorporated. They run this simulation at three different N values and a fixed allele frequency and compare the results to the first set of simulations.
Finally, there are a collection of multiple choice and short answer questions that ask students to analyze the data and propose a model. Genetic Drift Assignment (Microsoft Word 82kB Jul25 06)