BIO120H1 Lecture Notes - Lecture 1: Theodosius Dobzhansky, Drosophila Melanogaster, Microevolution

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9 Dec 2016
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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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Comparative (obtain same data for many species) Biodiversity and adaptation are therefore products of evolution. Biodiversity- variety of life on earth; number of kinds of living organisms in a given area. Any trait that contributes to fitness by making an organism better able to survive. The evolutionary process that leads to the origin and maintenance of such traits. Nothing in biology makes sense except in the light of evolution . Influential concept of western thought: theodosius dobzhansky (1900-1975), fruit fly geneticist and founder modern evolutionary synthesis. Determining the ecological and genetic mechanisms responsible for evolutionary change. Involve population level studies of natural selection, adaptation and speciation using diverse organisms. Testing of theoretical models by experiments in the laboratory and field. Determining the evolutionary relationships of organisms in terms of common ancestry- phylogenetics. Affinities of common organisms provide a basis for classification taxonomy and systematics. Comparative data from many sources, eg. biogeography, paleontology, morphology, development and genomics.