Evolution:
Change Through Time
Vocab
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"All men want, not something to do with, but something to do, or rather something to be." --Henry David Thoreau Walden
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allele frequency
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the frequency of an allele within a population. |
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differential reproduction
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reproduction dependent upon difference or distinction.
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diversifying selection
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the natural selection of both extremes along a continuum of variability. |
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directional selection
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the natural selection of one extreme along a continuum of variability. |
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evolution
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the cumulative genetic change in a population over time.
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genetic variation
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the quality of having a diversity of genetic possibilies. |
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natural selection
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the tendency of organisms to possess those traits which are favorable in relationship to their environment.
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point mutations
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the change of a single nucleotide in a nucleotide sequence.
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polyploidy
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possession of more than two sets of chromosomes per nucleus. |
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stabilizing selection
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the natural selection against extremes along a continuum of variablity.
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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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