BIOLOGY 1M03 Chapter Notes - Chapter 13-14: Denisovan, Upper Paleolithic, Y Chromosome
15 May 2017
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Chapter 13: homo sapiens and evolution of modern human behavior. Large, round skull with high forehead: small face and teeth, protruding chin. The origin & spread of modern humans: homo sapiens, evolved in africa ~100,000- 200,000 years ago, small population left africa ~60,000 yrs ago, populated australia and the americas. The origin and spread of modern humans: genetics. Y chromosome ad mtdna: mutations accumulate over time: genetic trees, map genes out to compare them. Distribution: provides knowledge of past, and future. Indicated recent evolution: descended from small population (12,000) Variation: migrates, population growth, different frequency, passage of individuals that change in the frequency, less variation at the final. Maps: the climate that affects the tundra, out to areas that were warmer. The african archaelogical record for the later pleistocene modern human behavior. Middle stone age (modes 3 5: technological advances, social organization: more humans create more hunting positions, symbolic expression: higher levels of cultural expression (more evolved)
