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Population Genetics


Explain the Hardy-Weinberg Equilibrium A mathematical statement on the conditions of a hypothetical non-evolving population. Used to identify the conditions in which evolution happens by showing us the impossible set of circumstances needed to block evolution.
What is the equation? P2 + 2PQ + O2 = 1
Describe the model Evolution is changes in allele/genotype frequencies over time. If a pop. is in H-W Equilibrium there is no change in allele/genotype frequencies. (pop. is not evolving).
What are the H-W Equilibrium conditions? Random mating (non-pref mating), Large pop. size (no genetic drift), No immigration/emigration (no gene flow), and no mutation. All traits in the pop. have equal fitness.
Genetic Drift: Occurs when population is not infinitely large.
Gene Flow: Immigration or emigration
Mutation: Spontaneous appearance of new genetic variation
Natural Selection: Differential fitness exhibited among traits
Created by: cassidylm34