Which Hardy-Weinberg condition is affected by population size?
A) selection
B) genetic drift
C) gene flow
D) no mutation

Question

Quizplus · Accepted Answer

Genetic drift is affected by population size because the smaller the population, the greater the chance of random fluctuations in allele frequencies. In a small population, certain alleles may become more or less common purely by chance, rather than due to natural selection or gene flow. The other options (selection, gene flow, and no mutation) are not affected solely by population size, but by other factors such as environmental pressures, migration, and the absence of genetic alterations.

Which Hardy-Weinberg Condition Is Affected by Population Size