BIOL 203 Lecture Notes - Lecture 3: Phenotype, Zygosity, Panmixia
Document Summary
Frequency overtime: natural selection (ns) only evolutionary process that is constantly increasing adaptation in a population, genetic drift random changes in allele frequency, gene flow migration of individuals to or from population, mutation creation of new alleles (beneficial, deleterious, neutral) Adaptation heritable trait that increases fitness of individual within population or the process by which ns increases the average fitness within a population. Acclimation short term changes within an individual (increased breathing, dilated pupils) Acclimatization long term change in an individual (increase in red blood cells when moving to a higher altitude) Evolution does not have to mean greater adaptation. Non-adaptation evolution ex: changes in 3rd codon positions in protein coding genes. Population is a groups of organisms from same interacting species. Species is a group of individuals that can interbreed. Taxon is any group of organisms (usually named) e. g. a family, species, subspecies. Resulting in changes in the genotypes present in the population.
