Chapter 16:
Population Genetics
Practice Test
1.
What is the selective breeding of organisms to encourage the occurrence of desirable traits?
a.
natural selection
b.
artificial selection
c.
inbreeding
d.
genetic drift
Hint
2.
If a breeder wanted larger chickens, which of these pairs would he allow to breed?
a.
small hen, large rooster
b.
small hen, small rooster
c.
large hen, large rooster
d.
large hen, small rooster
Hint
3.
What is genetic drift that influences new populations?
a.
founder effect
b.
inbreeding
c.
population bottleneck
d.
gene flow
Hint
4.
What causes a reduction in survival and fertility in a population as compared to populations that do not suffer from this condition?
a.
founder effect
b.
artificial selection
c.
population bottleneck
d.
inbreeding depression
Hint
5.
What is sexual reproduction of closely related individuals?
a.
population bottleneck
b.
inbreeding
c.
founder effect
d.
gene flow
Hint
6.
When two or more alleles of a gene are present in a gene pool, the population is ____________ .
a.
somatic
b.
evolving
c.
drifting
d.
polymorphic
Hint
7.
What is evolutionary change on a large scale that results in new species?
a.
macroevolution
b.
gene flow
c.
genetic variation
d.
microevolution
Hint
8.
Which of these is NOT a main mechanism that affects gene pools?
a.
mutation
b.
natural selection
c.
gene flow
d.
gene therapy
Hint
9.
What are relatives that arise from a single fertilized egg?
a.
cell cultures
b.
inbred
c.
fraternal twins
d.
identical twins
Hint
10.
What is the field of biology that studies microevolution?
a.
functional genomics
b.
geology
c.
population genetics
d.
paleontology
Hint
