AP Biology Quarter 3: Weeks 20-21 January 21-Februarty 1, 2013 DATE IN CLASS Tuesday (3; 95 min.) 1/22/13 Natural Selection and Hardy-Weinberg Equilibrium Thursday (3; 95 min.) 1/24/13 BLAST Analysis Monday (3; 95 min.) 1/28/13 Speciation Wednesday (3; 80 min.) 1/30/13 Macroevolution and Cladistics Friday (3; 95 min.) 2/1/13 Evolution Summary: Ice Fish and Sickle Cell C. Gay 1/21/13 * What evidence supports evolution? What has the Modern Synthesis added to the work of Darwin? What are the potential causes of microevolution? * What can the sequence of a highly conserved gene tell us about phylogeny and species? *What is a species? How do new species arise? *How does the fossil record chronicle macroevolution? What is the role of mass extinctions and evo-devo in evolution? What is the role of phylogenetics and cladistics in systematics? *How does natural selection affect humans? How does natural selection work at a biochemical level? HOMEWORK 1. RPM +HW Problems DUE: Th 1/24 2. Bring your Laptop DUE: Th 1/24 1. Ch 14 SG DUE: M 1/28 1. Ch 15 SG DUE: W 1/30 1. Evolution Essay DUE: F 2/1 2. Evolution Assessment DUE: T 2/5 1. Evolution Assessment DUE: T 2/5 Steamboat Springs High School Knowledge Evidence of Evolution o Darwin’s voyage and descent with modification o Evidence of evolution: fossil record, biogeography, comparative anatomy (homologous and analogous structures), comparative embryology, molecular biology Darwin’s Theory and the Modern Synthesis o Natural selection and artificial selection o Modern synthesis and population genetics o Microevolution o Hardy-Weinberg Principle (population size, isolation, mutations, random mating, natural selection o Genetic drift: bottleneck effect, founder effect o Gene flow o mutation Variation and Natural Selection o Polymorphic populations, clines, heterozygote advantage, neutral variation o Darwinian fitness o Types of natural selection: stabilizing selection, directional selection, diversifying selection o Sexual dimorphism o Limits of natural selection Concept of Species o Biological species concept, ring species o Other species concept: morphological species, genealogical species, ecological species o Reproductive barriers: prezygotic barriers (temporal, habitat, behavioral, mechanical, gametic), postzygotic barriers (hybrid inviability, hybrid sterility, hybrid breakdown) Mechanisms of Speciation o Geographic isolation and allopatric speciation o Adaptive radiation o Sympatric speciation and polyploidy o Gradualism vs. punctuated equillibrium Earth History and Macroevolution o Macroevolution and the geologic time scale o Radiometric dating o Continental drift: Pangea, Laurasia, Gondwana, plate tectonics o Mass extinctions o Exaptation o Evo-Devo and paedomorphosis o Phylogenetic trees and cladistics Systematics and Phylogenetic Biology C. Gay 1/21/13 o o o Systematic classification Convergent evolution: homology vs. analogy Molecular comparisons: protein comparisons, DNA and RNA comparisons, molecular clocks o Cladistic analysis The Domains of Life o Three domain system Early Earth and the Origin of Life o Early Earth environment o Origins of life, Miller-Urey o Ribozymes and RNA world o Molecular cooperatives Animal Evolution and Diversity o Characteristics of animals o Origins of the animal kingdom Invertebrates o Porifera: radial symmetry, body plan, nutrition and digestion o Cnidaria: radial symmetry, body plan, life cycle, nutrition and digestion, development o Platyhelminthes: bilateral symmetry, nutrition and digestion, flukes, tapeworms, body cavities, disease o Nematoda: body plan, nutrition and digestion, C. elegans, diseases o Mollusca: body plan, gastropods, bivalves, cephalopods o Annelida: segmentation, earthworms, polychetes, leeches o Arthropoda: body plan, horseshoe crab, arachnids, crustaceans, centipedes and millipedes, insects (types of metamorphosis) o Echinodermata: radial symmetry, body plan, water vascular system Vertebrates o Features of Chordates: nerve chord, notochord, pharengeal gill slits, post-anal tail o Tunicates and Lancelets o Vertebrates characteristics: skull and backbone, hinged jaws o Chondricthyes and Osteichthyes o Amphibians o Reptiles and amniotic eggs o Birds o Mammals: monotremes, marsupials, eutherials Phylogeny of the Animal Kingdom o Evolutionary trends: tissues, symmetry, body cavity, coelom Steamboat Springs High School