Biology 1201A Quiz: Selection and Fitness.docx

• School: Western University
• Department: Biology
• Course: Biology 1201A
• Professor: Jennifer Waugh

Document Summary

Natural selection link to genetics: comparing mice fur colour, blending with native soil colour reduces predation, light colour a result of a single amino acid change in mc1r, frequency of light" allele correlates with degree of lightness in populations, different in one base pair, causes the differences in phenotype (single nucleotide polymorphism) (micro) evolution, small scale changes in genetic make up of a population, population = the individuals of the same species interacting with one another, small scale changes = changes in allele frequencies from generation to generation, clicker question, a population of pigs with variation in coat colour, where black is dominant to brown coats, exists. Inheritance patters of alleles can influence rate of fixation (and therefore degree of variation: during the simulation the allele frequency of black alleles disappeared, while the brown allele increased to a frequency of 1, when this happens we call it fixation, clicker, wolves prey on pigs.