If You Sampled the Genetic Characteristics of a Large Population

Multiple Choice

If you sampled the genetic characteristics of a large population and found that of the 50 loci analyzed there is very little, if any, variation, the most likely explanation is that

A) a uniform environment selected for these alleles.
B) there has been a lack of migration, and the genetic equilibrium stabilized the population.
C) strong selection pressures eliminated alternative alleles.
D) a bottleneck effect may have occurred in the past to reduce the variability in the population.
E) a combination of low mutation rates and differential sexual selection produced these results.