Multiple Choice
Which term best describes different forms of the same gene that can exist at a specific locus within a population?
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21. Population Genetics
Allelic Frequency Changes
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In population genetics, gene flow is accomplished by which of the following processes?
A
Random changes in allele frequencies due to sampling effects in finite populations (genetic drift)
B
New alleles arising through random mutations within a population
C
Changes in allele frequencies caused by differential survival and reproduction (natural selection)
D
Movement of alleles between populations via migration of individuals or dispersal of gametes (e.g., pollen) followed by successful reproduction
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