ANTHROP 2D03 Lecture Notes - Lecture 10: Human Taxonomy, Effective Population Size, Anatomically Modern Human
26 Oct 2016
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Document Summary
Genetic diversity - total genetic variation found among the whole human species. Genetic drift, bottlenecks, founder events, expansions, migrations. Mutation and selection, environmental adaptations cultural/behavioural influences on group structure, kin relationships. Different patterns are revealed by different parts of the genome. Depending on the locus (i. e. gene), it will reveal patterns attributable to different factors. You need multiple lines of evidence to reconstruct true history of a population. And that is subjective to the questions being asked. Patterns of genetic diversity as they apply to reconstructing modern human demographic history. Effects of recombination, selection, and drift are very important in human history. O. o. a. vs multiregional theories (o. o. a = out of africa) Supported by a variety of archaeological evidence (although open for debate) But mt and nuclear data show different patterns. Because of this, any accumulated neutral mutations are completely linked to other mutations possibly experiencing selection. Must be taken into account in calculations.
