Discuss mechanisms of evolution which are other than natural selection. Introduce population genetics and the Hardy-Weinberg equation. Discuss how allele and genotype frequencies remain constant over generations when no evolutionary forces are active. Work a sample H-W equation using earlobe attachment alleles. Include homozygous dominant numbers, heterozygous dominant numbers, and homozygous recessive numbers. Determine that if any answer is different than 1, then evolution is occurring in a population. Indicate that there are 5 common conditions, or forces, which will act on evolution. Each will be discussed tomorrow