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- 1. Multiple Choice
The _________________ _________________ occurs when there is a reduction in population due to natural disasters, over hunting or disease.
founder effect
gene flow
bottleneck effect
genetic drift
- 2. Multiple Choice
In which of the following populations would genetic drift be most likely to cause a rapid evolution of the population?
The human population of India
A large population of Mexican free-tailed bats living in central Texas
A geographically isolated population of 5000 green tree frogs
A small group of 12 cheetahs living in Namibia
- 3. Multiple Choice
As a population recovers from reduction due to the bottleneck effect, the population will experience -
a loss of genetic dicversity.
migration.
no change to allele frequency.
genetic regulation.
- 4. Multiple Choice
Genetic drift occurs most quickly in -
small populations.
populations with large genetic variation.
populations with small genetic variation.
large populations.
- 5. Multiple Choice
What is gene flow?
The addition or removal of alleles in a population due to individuals entering or leaving one population for another
A change in allele frequencies when a new population arises from only a few individuals
A reduction in population caused by natural disasters, disease, hunting, etc.
A change in the gene pool due to chance
- 6. Multiple Choice
A widespread occurrence of disease is called a(n) ______________.
allele frequency
natural disaster
bottleneck effect
epidemic
- 7. Multiple Choice
Select all answers below that describe the founder effect.
Changes allele frequencies
Occurs when a new population arises from only a few individuals
Can result in a loss of genetic diversity
Is caused by a disaster that kills off most individuals in a population
- 8. Multiple Choice
Which of the following could not be a possible cause of the bottleneck effect?
Overhunting of northern elephant seals
A forest fire that destroys most of a population of deer
A crop that is destroyed by blight
A small group of fish that are added to a pond
- 9. Multiple Choice
What is genetic drift?
A population for which the gene frequencies do not change
A change in allele frequencies due to selection
The addition or removal of alleles in a population due to individuals entering or leaving one population for another
A change in the gene pool due to chance
- 10. Fill in the Blank
A gene pool consists of ____________ frequencies that can change randomly through generations due to chance.
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