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13 Cards in this Set
- Front
- Back
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Evolution occurs within |
populations |
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Common misconception |
evolution occurs in individual organism |
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what is a population |
group of individuals of same species that live in same area and can potentially interbreed |
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evolution can be measured |
as change in the prevalence of certain heritable traits in a population over generations |
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different populations of same species have rare exchange of genetic material due to |
geographically isolated locations |
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not all have sharp boundaries, but members of same population are |
closer compared to other different populations |
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Test whether a population is evolving |
Hardy-Weinberg equation |
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shuffling of alleles that accompanies sexual reproduction do not |
alter genetic makeup of population |
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Five main conditions to satisfy hardy Weinberg equilibrium |
very large population, no gene flow between populations, no mutations, random mating, no natural selection |
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gene flow causes |
changes in allele frequencies of a population |
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Why? |
Populations may lose or gain alleles when fertile individuals move in or out of a population |
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gene flow tends to reduce |
difference between populations |
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how gene flow interfere adaptation |
introduction of alleles that may not be beneficial in a habitat prevents from becoming fully adaptated |
