NEUTRAL THEORY of EVOLUTION
NEUTRAL THEORY of EVOLUTION
NEUTRAL THEORY of EVOLUTION
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Genetic drift<br />
►Let the frequency <strong>of</strong> in next generation = p’ p<br />
►p p will not = p’ p if the population is finite,<br />
because <strong>of</strong> chance (sampling).<br />
►The proportion <strong>of</strong> deviation from one<br />
generation to next should<br />
• Go up sometimes and down sometimes<br />
• Be inversely proportional to N, pop size<br />
• END when one allele reaches 100% <strong>of</strong><br />
population, a state called fixation.<br />
Exam 2 Lecture 8 UIC BioS 101 Nyberg 7
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