If genetic drift is not accompanied by natural selection,mutation,or migration,then the frequencies of alleles will "wander" between 0 and 1.Using the accompanying figure,which of the following is an accurate statement?
A) Random sampling error generates fluctuations in allelic frequencies over generations, so all populations-both simulated and real-have been found to follow the same evolutionary trajectory.
B) The effects of genetic drift are more immediate, and more pronounced, on small population sizes.
C) Genetic drift will have no long-term effect on allelic frequencies if the population numbers more than 40 individuals.
D) None of these is an accurate statement.
Correct Answer:
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