[Campbell Biology P.543] Which of the following best defines "genetic drift" as described in... | Practice Question
Which of the following best defines "genetic drift" as described in the text?
A: The process by which individuals better suited to their environment tend to produce more offspring.
B: The increase in frequency of beneficial alleles in a population over time due to consistent environmental pressure.
C: Unpredictable fluctuations in allele frequencies from one generation to the next due to chance events, especially significant in small populations.
D: The establishment of a new population by a few isolated individuals whose gene pool differs from the source population.
Explanation
The text defines genetic drift as 'unpredictable fluctuations in allele frequencies from one generation to the next due to chance events, especially significant in small populations.'