CHDV 23249 Lecture Notes - Lecture 8: Genetic Drift, Skin Grafting, Exaptation
23 Jan 2017
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Research proposal ta: hilary katz (last names ki-p) Black moth (morph) started to pop up. What changed in the environment that caused these moths to change. Industrial revolution - soot in the air caused trees to darken, which then caused moths to adapt to the color of the dark trees (from white spotted moths to dark colored moths) Individuals struggle to survive (not necessarily two individuals fighting for resources, but struggle against predators, the environment, other species, etc. ) Unique sets of dna that are inheritable (variation is often heritable) there is differential survival and reproduction = natural selection (across many species = evolution) Natural selection the disproportionate survival and reproduction of individuals due to phenotype (influenced by genotype: differential success - differential reproductive success. Individual: phenotype of an organism that survives and reproduces, action and interaction of all the individual"s genes. Gene: dna is reshuffled in an individual.
