Professor Stearns takes an interesting approach to the subject, in that he discusses random changes in allele frequencies not in the context of their effects within populations (what he calls microevolutionary change), but rather how these processes relate to macroevolutionary processes, ones that we can use to make inferences about phylogeny. Pay particular attention to how he portrays the role played by random factors in populations and evolution, as well as the relationship between population size and the probability of fixation of new neutral mutations.

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