ANTHROP 2FF3 Lecture Notes - Lecture 4: Punnett Square, Allele Frequency, Genotype Frequency

• School: McMaster University
• Department: Anthropology
• Course: ANTHROP 2FF3
• Professor: Andrew Wade

Document Summary

Changes in the allele frequencies that occur over time within a population. A group of interbreeding individuals of the same species sharing a common geographic area. A 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 amongst individuals living in the same geographical area, due to ethnic/religious isolation and. What is the allele frequency of the yellow (y) in the given population. Four alleles out of a total of ten. Since there are only two alleles, the frequency of the blue allele is 100%=40%=60% Homozygotes have two copies of the same allele. Shows the genotype outcome of a cross (mating) Depends on possible combinations of gametes transmitted by each parent. 0. 5 (50%) if the parent is a heterozygote. 1(100%) if the parent is a homozygote genotype probabilities of the resulting progeny.