The Unusual Gene Frequencies of the Dunker Population of Eastern

question 27

Multiple Choice

The unusual gene frequencies of the Dunker population of eastern Pennsylvania are due to this phenomenon,which is seen frequently when small groups with unrepresentative gene frequencies break off from a larger population.

• A)unidirectional selection
• B)population bottleneck
• C)neutral allele
• D)disruptive selection
• E)founder effect

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