ANTB15H3 Lecture Notes - Lecture 2: James Ussher, Genetic Drift, Bipedalism
Document Summary
Evolution is the change in the gene frequency in a population over time. Can be broken down into micro (process), living populations, generations, examinations over a short period of time. Macro (product), fossils, 100"s of thousands of years. Macro perspective deals with speciation and how they evolve over time. A living population, a deme the smallest breeding population (mating) Reproductive period is 15-49, most likely to reproduce, some instances before and after. Menopause for older women, menses for younger women. Generation is 25-30 years, some hampering aspects. Macro-evolutionary, hominids over time developed bipedal locomotion, brain capacity. Micro-evolutionary change brought, resistant to infectious diseases. Paradigm, a common belief in a scientific way of thinking, ie evolution vs creationism. 4 mechanisms of process: natural selection (long process), gene flow, genetic drift, mutation, Genotype is determined by the mating sequence. Age of european exploration in the 17-18th century, a lot of variation. Creationism is that all people were created by god, 2 individuals.
