2. Biology and Evolution 1 September, 1998

3. Agenda n Review: Types of dating n Sign up for discussion leadership n Discussion of reading assignment n PTC Tasting n Discussion of Sociobiology –Divide readings –Teach each other –Summary

4. Mendelian Genetics n Chromosomes n Genes/Alleles n Mitosis, Meiosis n Phenotype, genotype n Dominant, recessive n Homozygous, heterozygous n Monohybrid cross

5. Exercise n PTC Tasting –What is your phenotype? –What are your possible genotypes? T = Taster t = non-taster n Natural selection –Sickle cell anemia SS, Ss, ss –Balanced selection

6. College Bowl n What are the mechanisms for evolution? n Genetics n Variation

7. What are the forces of evolution? n Natural selection n Mutation n Genetic Drift n Gene flow

8. What is a species? n Incapable of interbreeding –Reproductively isolated –Mechanically incapable n Offspring sterile

9. Sociobiology n Groups of eight n Each read a page n Tell each other what you read –Follow page order 1-6 –Interject to explain terms n Class discussion n Ethical Implications

10. Thursday n Essay due on Sociobiology –Email only n Chapter 4: Monkeys, Apes, and Humans n Discussants: