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Biology Evolution
| Term | Definition |
|---|---|
| gene shuffling | creates new variation by changing parts of the genetic code |
| gene pool | all the genes within a population |
| directional selection | occurs when natural selection favors one of the extreme variations of a trait |
| stabilizing selection | both extremes are selected against |
| disruptive selection | average phenotype selected against |
| gene flow | members of one population move to another population and breed |
| genetic drift | change in allele frequency due to random effects |
| bottleneck effect | randomly remove large numbers of individuals from a population |
| founder effect | small part of population removes itself from the larger population |
| geographical isolation | separated by geographical barriers |
| behavioral selection | separated by behavioral differences and don't mate |
| temporal isolation | Don’t reproduce at the same time |
| reproductive isolation | cannot mate and produce offspring |
| Hardy-Weinberg equilibrium | allelic frequency stay the same |
| adaptive radiation | species diversifies into many new species |
| convergent evolution | species evolve to a similar form from different ancestors and adaptive to similar environment |
| coevolution | species evolve together because of a close ecological relationship |
| punctuated equilibrium | evolution shows long stable period and then rapid burst of change |