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8 Cards in this Set
- Front
- Back
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any change in relative frequency of alleles in a population is called ___________
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evolution
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a gene pool consists of all the genes in a
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population
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the two main sources of genetic variation are?
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gene shuffling and mutations
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a random change in allele frequency is called
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genetic drift
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when birds cannot interbreed because they have different mating songs, they are characterized by _________________ isolation
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behavioral
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a situation in which allele frequencies change as a result of the migration of a small subgroup of a population is known as the ___________________________
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founder effect
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Research on Galapagos finches by Peter and Rosemary Grant showed that a type of natural selection called ______________ selection was occuring
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directional
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Two related species that live in the same area but mate during different seasons are separated by ______________ isolation
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temporal
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