Microevolution and speciation

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6 Terms

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Microevolution

evolution on a small scale within a single population

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Detecting microevolution

a change in gene frequency in the population

a group of organisms that share a common gene pool

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Speciation

a lineage splitting event that produces two r more separate species

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Allopatric speciation

geographical isolation

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Large geographical range

reduced gene flow but not complete isolation

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Other barriers to gene flow

evolution of different mating locations, mating time, mating rituals, lack of 'fit' of sexual organs