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8 Cards in this Set
- Front
- Back
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What is evolution?
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Evolution is a change in the gene pool of a population over time.
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Who is essentially the father of evolution?
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Charles Darwin
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What is Neo-Darwinism?
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The term was first used by George Romanes in 1895 to refer to the idea that evolution occurs solely through natural selection, as proposed by Alfred Russel Wallace and August Weismann, in other words, without any mechanism involving the inheritance of acquired characteristics resulting from use or disuse.
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What is another term for Neo- Darwinism?
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Modern Synthesis
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What theories did Alfred Russel Wallace come up with?
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warning clouration, wallace effect
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What type of bird in the Galapagos island was Darwin most interested in?
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finches, he saw the evolutionary differences in their beaks.
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What is the Wallace effect?
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a hypothesis on how natural selection could contribute to speciation by encouraging the development of barriers against hybridization.
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What is the Modern Synthesis?
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Modern Synthesis (Modern Synthetic Theory) was first proposed in Fisher’s The Genetical Theory of Natural Selection (1930). It was actual mathematical documentation in support of natural selection. It stated that the ultimate cause for variation is mutation. The theory involves the following processes: a) variability generated by gene & chromosomal mutations, genetic recombination, migration & hybridization. B) chance & natural selection determine course of evolution (i.e. account for genetic changes in population). The theory proposes two things: 1. Gradual evolution results from small genetic changes acted upon by natural selection. 2. Origin of species & taxa (macroevolution) explained by natural selection acting on individuals (microevolution).
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