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Transcript
Biology and Evolution 1 September, 1998 Agenda Review: Types of dating Sign up for discussion leadership Discussion of reading assignment PTC Tasting Discussion of Sociobiology – Divide readings – Teach each other – Summary Mendelian Genetics Chromosomes Genes/Alleles Mitosis, Meiosis Phenotype, genotype Dominant, recessive Homozygous, heterozygous Monohybrid cross Exercise PTC Tasting – What is your phenotype? – What are your possible genotypes? • T = Taster • t = non-taster Natural selection – Sickle cell anemia • SS, Ss, ss – Balanced selection College Bowl What are the mechanisms for evolution? Genetics Variation What are the forces of evolution? Natural selection Mutation Genetic Drift Gene flow What is a species? Incapable of interbreeding – Reproductively isolated – Mechanically incapable Offspring sterile Sociobiology Groups of eight Each read a page Tell each other what you read – Follow page order 1-6 – Interject to explain terms Class discussion Ethical Implications Thursday Essay due on Sociobiology – Email only Chapter 4: Monkeys, Apes, and Humans Discussants: