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15 Cards in this Set
- Front
- Back
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Gene Pool |
All of the alleles of all the individuals in a population |
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Population |
A group of the same species living in one area |
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Genetic Drift |
The change in the gene pool of a small population due to chance |
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Natural Selection |
Success in reproduction based on heritable traits results in selected alleles being passed to offspring |
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Gene Flow |
Genetic exchange due to the migration of fertile individuals or gametes between populations |
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Mutation |
A change in an organisms DNA |
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Non-Random Mating |
Mates are chosen on the basis of the best traits |
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Bottleneck Effect |
A drastic reduction in population (volcanoes, earthquakes, landslides...) |
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Founder Effect |
Occurs when a new colony is formed by a few members of the original population |
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Directional Selection |
-Favors individuals at one end of the phenotypic range -Most common during times of environmental change or when moving to new habitats |
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Disruptive Selection |
-Favors extreme over intermediate phenotypes -Occurs when environmental change favors an extreme phenotype |
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Stabilizing Selection |
-Favors intermediate over extreme phenotypes -Reduces variation and maintains the current average |
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Co-Evolution |
Often occurs between parasite and host or flower and pollinator |
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Geographic Variation |
Variation in a species due to climate or another geographical condition |
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Taxonomy |
The study of the classification of organisms |
