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How Populations Evolve

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Term
Definition
Microevolution   evolutionary change within a population.  
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"a specific" definition of Evolution   the change in allele frequencies in a population over time.  
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Population genetics   The field of biology that studies the diversity of populations at the level of the gene.  
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Gene pool   the alleles of all genes in individuals of a population.  
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The expression to describe the sum of allele frequencies in a populations is...   p + q = 1, ("p" is Dominant and "q" is Recessive)  
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The Hardy-Weinberg Equilibrium states...   Allele frequencies in a population will remain constant assuming: 1. No mutations, 2. no migration 3. No gene flow, 4. Random mating, 5. No genetic drift (large gene pool/population), 6. No selection.  
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Genetic Equilibrium   When the allele frequencies in a population do not change over time.  
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Hardy-Weinberg equilibrium derived from the work of...   Godfrey H. Hardy and Wilhelm Weinberg  
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The expression to describe the sum of allele frequencies in a non-evolving populations is...   P^2 + 2pq + Q^2  
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Reproductively isolated   incapable of interbreeding  
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Genetic drift   Changes in the frequencies of a gene pool due to chance events.  
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Bottleneck effect   Special type of genetic drift where the loss of genetic diversity is from natural disasters or nature disturbances.  
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Founder effect   Special type of genetic drift where the loss of genetic diversity when a few individuals break away from a large population to found a new population.  
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Created by: Shirone
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