Question 1
The trend toward increased mobility of the world populations will probably lead to
◦ increased allele frequency differences among populations.
◦ decreased allele frequency differences among populations.
◦ a decrease in mutation rate.
◦ no change in allele frequency differences among populations because of selection.
◦ none of these.
Question 2
To be effective as a force changing genetic diversity, drift requires
◦ a long period of time.
◦ selection.
◦ small, isolated populations.
◦ large-scale migrations.
◦ geographic stability.