BSC 1010 Study Guide - Comprehensive Final Exam Guide - Natural Selection, Evolution, Dna
Document Summary
Learning objectives: darwinian view of evolution, natural selection, supporting evidence of evolution, direct observations, homology, the fossil record, biogeography. Artificial selection: darwin noted that humans have modified other species by selecting and breeding individuals with desired traits, a process called artificial selection. Direct observations of evolutionary change: two examples provide evidence for natural selection, natural selection in response to introduced species, the evolution of drug-resistant bacteria. Natural selection in response to introduced species: soapberry bugs use their beak to feed on seeds within fruits, feeding is most effective when beak length is closely matched to seed depth within the fruit. Learning objectives: genetic variation, hardy-weinberg equation, natural selection, genetic drift, gene flow, sexual selection, balancing selection. Microevolution: microevolution is a change in allele frequencies in a population over generations, three main mechanisms cause allele frequency change, natural selection, genetic drift, gene flow, only natural selection consistently causes adaptive evolution.
