Natural Selection
Vocab
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"Of what use this measuring of me if they do not measure my character, but only the breadth of my shoulders." --Henry David Thoreau Walden
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gene flow
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the movement of alleles between local populations (demes) due to th migration of individuals. |
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prezygotic mechanisms
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mechanisms that prevent gene flow between species by preventin mating.
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postzygotic mechanisms
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mechanisms that prevent gene flow between species and ensures reproductive failure even though fertilization has taken place. |
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reproductive isolation
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the reproductive barriers that prevent a species from interbreeding with another species.. |
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speciation
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the evolutionary formation of a new species.
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genetic drift
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a random change in allele frequency in a small breeding population. |
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B R I G H A M
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Y O U N G U N I V E R S I T Y
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