Which of the following would likely increase the likelihood of fixing a beneficial allele in a population of finite size?
A) a higher starting frequency to decrease likelihood of drift
B) a larger excess fitness to increase selection for the beneficial allele
C) a larger population size because selection will be greater in a larger population
D) all of the above
E) none of the above

Question

Quizplus · Accepted Answer

All the options listed contribute to increasing the likelihood of fixing a beneficial allele in a population. A higher starting frequency reduces the impact of genetic drift, a larger excess fitness increases the selection pressure favoring the beneficial allele, and a larger population size reduces the relative impact of genetic drift, allowing selection to more effectively promote the allele's fixation.

Which of the Following Would Likely Increase the Likelihood of Fixing