PSYCH 1XX3 Chapter Notes - Chapter 2: Behavioural Genetics, Genetic Drift, Assistive Technology
22 Feb 2016
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Intro to adaptations: adaptations: the working parts (functional systems and subsystems) that animals (and humans) are made up of. Adaptations: biological traits/characteristics that help an individual to survive and reproduce in its habitat their enviro. Break down large-scale cognitive processes into adaptive. Evolution by natural selection problems/tasks and look for adaptations that solve those problems: charles darwin and alfred russel wallace. Natural selection, mutation, genetic drift, migration: natural selection: differential survival and reproduction of organisms as a result of the heritable differences between them, 3 essential components. Individual differences: variation among individuals in a population for any characteristic. Differential reproduction: differences affect individual"s survive and reproduction. Heritability: traits have a genetic basis = they are heritable. Offspring with resemble parent"s characteristics: e. g. blue fish and red fish. Blue fish camouflage better than red fish so they tend to have more offspring from higher survival and reproduction rate. Their offspring is blue colour but it is a heritable trait.
