Choose the best answer:
1. Which evolutionary
force has likely determined the great diversity of faces in guenons? :
a) gene flow
b) disruptive selection
c) founder effect
d) balancing selection
2. What
evolutionary force has likely caused high frequency of
sickle cell anemia in human populations of
tropical Africa?
a) gene flow
b) mutations
c) balancing selection
d) bottle neck
3. Which
of the following is true about genetic drift?
a) it tends to
increase genetic diversity within a population
b) it cannot change allele
frequency in a population
c) its effect is the strongest in
small populations
d) it tends to decrease
frequencies of all alleles
