EEB215H1 Lecture Notes - Lecture 3: Genetic Drift, Speciation, Allele Frequency
20 Sep 2016
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Document Summary
Develop strategies to gauge success in conservation biology. Level of implementation does not directly correspond with conservation effect. Evolution creates the diversity we see today. Group of interbreeding individuals that can produce viable offspring. New species are created when populations separate and differences accumulate so that they no longer can produce viable offspring. Evolutions produces different morphs within a species. Alternate forms of a gene are referred to as alleles : each individual has 2 alleles per gene: Evolution change in frequency of a trait in a population over time. Mutation: mutation may arise that gives an individual an advantage or disadvantage, new source. Natural selection some traits will be selected for or out in nature selective agent can be: biotic (ex. Temperature) individuals survive and reproduce and pass their traits to next generations or else don"t. Evolution for smaller body size due to fishing fishermen as the selective agent fishing pressure causes changes in body size.
