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Migration

Migration. Q1. What would be the trend for allele frequencies of populations that that are large vs. very small?. Large populations will have a greater range in frequency; smaller populations will have a low range of variation in frequency

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507 views • 38 slides

Mutation as an evolutionary force

Mutation as an evolutionary force. Alleles may be kept in a population through a balance between mutation (creating deleterious alleles) and selection (removing them) - in mutation-selection balance , the frequency with which

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446 views • 37 slides

Forces of evolution: migration and drift

Forces of evolution: migration and drift. How can unfavourable alleles become common in a population? PKU: hypothesis 3. A simple life cycle. drift. ZYGOTES. GAMETES. survival. mutation. JUVENILES. ADULTS. migration. Genetic drift: sampling error. f(A2) = q = 0.4. f(A1) = p = 0.6.

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612 views • 30 slides

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Migration

Mutation as an evolutionary force

Forces of evolution: migration and drift