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16 Cards in this Set
- Front
- Back
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Artificial Selection
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A process in which humans change a species by breeding it for certain traits
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Heritability
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The ability of a trait to be passed down from one generation to the next
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Natural Selection
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A mechanism where individuals who have inherited beneficial adaptations produce more offspring than average
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Poulation
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All of the individuals in a species that live in one area
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Fitness
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The ability to survive and reproduce
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Gene Pool
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The combined alleles of all t6he individuals in a population
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Allele Frequency
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A measure of how common a certain allele is in a population
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Microevolution
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The observable change in the allele frequencies of a population over time
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Directional Selection
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A type of selection that favors phenotypes at one extreme of a traits range
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Stabilizing Selection
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A process where the intermediate phenotype is favored and becomes more common in the population
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Disruptive Selection
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Occurs when both extreme phenotypes are favored while individuals are selected against something in nature
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Gene Flow
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The movement of alleles from one population to another
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Genetic Drift
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Causes a lot of genetic diversity in a population
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Bottleneck effect
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Genetic Drift that occurs after an event greatly reduces the size of a population
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Founder Effect
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Genetic Drift that occurs After a small number of individuals colonize a new area
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Sexual Selection
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Occurs when certain traits increase mating success
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