Evolution Test 2
Terms
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- People who influenced Darwin
- Anaximander, Lamarck (giraffs), Lyell (natural forces change the earth over long periods of time), and Wallace (published with Darwin)
- Different types of evidence
- Biogeography, comparative anatomy (homologous structures), comparative embryology, molecular biology
- Hardy Weinberg Equilibrium
- The frequencies of alleles will stay the same no matter how many times meiosis happens or how many times the alleles are put in different combinations.
- Five Conditions of Hardy Weinberg
- The population is large, the population is isolated, mutation does not affect the gene pool, mating is random, and all organsism are equal in reproductive success.
- Genetic Drift
- A change in the gene pool of a small population due to chance.
- The Bottleneck Effect
- Its genetic drift resulting from an event that drasticly reduces a populations size.
- The Founder Effect
- Its the colonization of a new location by a few individuals. The resulting gene pool is very small.
- Gene Flow
- When individuals move into or out of a gene pool.
- Tools of Microevolution
- Genetic drift, the bottleneck effect, the founder effect, gene flow, and mutation.
- Tools of Macroevolution
- Natural selection and variation.
- Morphs
- Different phenotypic characteristics in a population.
- Neutral Variation
- Variation in a heritable characteristic that exhibits no apparant selective advantage between individuals.
- Darwinian Fitness
- It measures how succesful an organism is at passing on its genes to the next generation.
- Outcomes of Natural Selection
- Stabilizing selection, directional selection, and diversifying selection.
- Sexual Dimorphism
- The physical differences, other than sexual organs, between sexes.