ANTHROP 2200 Chapter Notes - Chapter 4: Chorea, Malaria, Genetic Drift
18 Sep 2016
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Deme: local population of organisms that have similar genes, interbreed, and produce offspring. Gene pool: all genetic information in breeding population. Reproductive isolation: any circumstance that prevents two populations from interbreeding and exchanging genetic material, such as when populations are separated by large body of water or major mountain range. Population genetics: study of change in genetic material, specifically allele frequencies. Macroevolution: large-scale evolution, such as a speciation event that occurs after hundreds or thousands of generations. Equilibrium: a condition in which the system is stable, balanced, and unchanging (sickle-cell) Hardy weinberg equilibrium: mathematical model in population genetics that reflects the relationship between frequencies of alleles and of genotypes; can be used to determine if population is evolving, as null hypothesis. Point mutations: replacements of a single nitrogen base with another, which may or may not affect amino acid for which it codes. Synonymous point mutation: neutral point mutation where same amino acid is produced as with original nitrogen base.
