BIOL 1020U Study Guide - Midterm Guide: Zygosity, Gel Electrophoresis, Gene Pool
Document Summary
Evolution (lecture 1) th , 2015 11:10 am. 3 key observations about life: organisms suited to their environment, shared characteristics (unity, rich diversity. Genetic variation: natural selection depends on the differential success in terms of surviving and reproducing of variants, high degree of phenotypic variation, low in terms of genetic variation. Population genetics study of patterns of genetic variation. Species group of individuals that can exchange genetic material through interbreeding, or share alleles through reproduction. Gene pool all the alleles present in all individuals in a species. Populations interbreeding group of organisms of the same species living in the same geographical area. Mutation generates new variation: somatic, germ-line, deleterious, neutral, advantageous, adaptations, recombination, shuffles mutations to create new combinations. Total # of alleles in population: must know rates of occurrence of the alleles in population to measure genetic variation. Dna sequencing: allows modern population geneticists to look at any variation in dna sequence.
