BIO 1130 Lecture Notes - Lecture 10: Sickle-Cell Disease, Sympatric Speciation, Genetic Drift

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

Major events of biology in the history of biology: modern. Mean changes change in allelic frequencies. Hardy-weinberg principle"s assumptions: no natural selection, random mating sexual selection, no genetic drift population is large, gene flow, no mutation. Nonrandom mating: interbreeding, sexual dimorphism changed. Males have more features than females (animals) Male and female lions: sexual selection. Genetic drift: bottle neck effect, founder affect. Sickle cell anemia effect of selection for heterozygote. If you sample too small, then you won"t get the predicted sequences. Land over top of bridges allows for gene flow and minimization the separations of population on either side. Avoid road accidents between animals and cars. Objective is to connect the same species together. Gene flow to solve a conservation base issue. Increase genetic variability of population by fusing them together. Genome duplication: paired chromosomes with their duplicated cells they wrap around each other and cross over they swap their material.