If not all of the variation seen in the human population can be attributed to natural selection, then what else could MOST likely be responsible for this variation?

Question

Quizplus · Accepted Answer

All of these choices are correct. Genetic drift and founder events can both lead to variation in gene frequencies and genetic traits in a population over time. Sexual selection can also contribute to variation, as certain traits may be sexually selected for and increase in frequency in a population. Therefore, all of these factors can contribute to variation in the human population.

If Not All of the Variation Seen in the Human