1) The DF508 allele, which causes cystic fibrosis inhomozygotes, occurs at a frequency (0.02) in European populationsthat exceeds the background mutation rate in humans. This suggeststhat what process might be maintaining this relatively high allelefrequency?
Select one:
a. Mutation
b. Drift
c. Selection
d. None of the above
2)
Which of the following could be used to differentiate twopopulations?
Select one:
a. Geography
b. Allele frequencies
c. Barriers to dispersal
d. All of the above
3) Migration between populations tends to ______ allelefrequencies.
Select one:
a. homogenize / make the same
b. differentiate / make different
4) Given enough time, drift alone will tend to do what togenetic diversity in a population?
Select one:
a. Increase
b. Decrease
c. Maintain
5)
Which of the following processes will be intensified in smallpopulations (i.e., will change allele frequencies in fewergenerations)?
Select one:
a. Genetic drift
b. Selection
c. Migration
d. All of the above
