Which of the following statements explains why a population must be infinitely large in order to be in genetic equilibrium?
a. There are no mutations in large populations.
b. Small populations have higher rates of mutation than do large populations.
c. Natural selection cannot act on large populations.
d. Mating must be random in large populations.
e. Large populations are less likely to have chance changes in allele frequencies.
Question 2
If the observed allele frequencies in a population differ significantly from those predicted by the Hardy-Weinberg equilibrium theory, then
a. the population is in genetic equilibrium.
b. evolution is not occurring.
c. mutations have stopped occurring.
d. the population is a breeding isolate.
e. evolution is occurring.
Abiotic factors influence population densities.
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Large facial tumor due to malignant Burkitt’s lymphoma, a non-Hodgkin’s lymphoma.
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