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.


Answer: d

Biology & Microbiology

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