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Chapter 16
How Populations Evolve
| Term | Definition |
|---|---|
| Microevolution | evolutionary change within a population. |
| "a specific" definition of Evolution | the change in allele frequencies in a population over time. |
| Population genetics | The field of biology that studies the diversity of populations at the level of the gene. |
| Gene pool | the alleles of all genes in individuals of a population. |
| The expression to describe the sum of allele frequencies in a populations is... | p + q = 1, ("p" is Dominant and "q" is Recessive) |
| 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. |
| Genetic Equilibrium | When the allele frequencies in a population do not change over time. |
| Hardy-Weinberg equilibrium derived from the work of... | Godfrey H. Hardy and Wilhelm Weinberg |
| The expression to describe the sum of allele frequencies in a non-evolving populations is... | P^2 + 2pq + Q^2 |
| Reproductively isolated | incapable of interbreeding |
| Genetic drift | Changes in the frequencies of a gene pool due to chance events. |
| Bottleneck effect | Special type of genetic drift where the loss of genetic diversity is from natural disasters or nature disturbances. |
| 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. |
Created by:
Shirone
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