Genetics of natural selection: principles
So far we've talked about what happens only when we violate the assumption of random mating. Today we'll talk a bit about what happens when we violate other assumptions that lead to deterministic changes in allele frequency. All of them correspond to different forms of natural selection. After taking time to present a brief catalog, we'll explore the basic principles of natural selection as illustrated by viability selection at one locus with two alleles.
I'm providing this exercise so that you can test your understanding of the concepts we would have covered in lecture today had classes not been canceled as a result of snow. I'll post answers to the questions on Sunday. I encourage you to work through the questions on your own between now and then. Bring any questions you have to class on Tuesday, and we'll discuss them before we start discussing how to estimate viability.