Biology 1001A Lecture Notes - Lecture 20: Genotype Frequency
24 Aug 2013
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Document Summary
By reducing the chances for indirect transmission of parasitic species in affected human areas, such parasites will have to rely more on direct transmission, and therefore the evolution of less virulent parasites will be promoted. A population can be defined as a group of individuals of the same species, living in a defined geographic area. Populations have many attributes that are not associated with individuals which include: allele and genotype frequencies, population size (n), geographic range, sex ratio, age structure, and rate of growth. Population size for non-moving organisms can be easily determined, however for such organisms that freely move, the mark-recapture method can be applied. Later, capture a second sample of animals (c) and see how many are marked as recaptured (r). This method can be simplified by the formula r/c = m/n or when calculating population size, n = mc/r. Marked and unmarked animals are equally likely to be captured.
