ANTHROP 2E03 Lecture Notes - Lecture 6: Punnett Square, Panmixia, Allele Frequency

• School: McMaster University
• Department: Anthropology
• Course: ANTHROP 2E03
• Professor: Andrew Wade

Document Summary

Changes in the allele frequencies that occur over time within a population. Population : a group of interbreeding individuals of the same species sharing a common geographic area. Gene pool : the sum of all alleles in a population at a particular time. We often assume random mating within a population. However, remember that in many cases, there is no random mating among individuals living in the same geographical area, due to: Shows the genotype outcome of a cross (mating) Depends on possible combinatins of gametes tramsmitted by each parent. 0. 5 (50%) if the parent is a heterozygote. 1 (100%) if the parent is a homozygote. When randomly selecting alleles from the gene pool, the probability of selecting a particular allele is equal to the frequency of the allele. Sum of the frequencies is 1 p + q + r is 1.