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Genetic Drift (Experimental studies of genetic drift (Results (Forked…
Genetic Drift
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Founder effect
When a group of individuals immigrates to a new geographic area and establishes a new population, a founder event it taking place
If this group is small, the alleles are different from those in the source population
A change in allele frequencies that occurs when a new population is established is called a founder effect
Genetic bottleneck
If a large population experiences a sudden reduction in size, a population bottleneck is said to occur
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Over time,it can lead to the random loss of fixation of alleles