Lesson 50: Gene Flow and Genetic Drift

Quiz
•
Science
•
9th - 12th Grade
•
Medium
+1
Standards-aligned
Susan Depau
Used 317+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
Tags
NGSS.HS-LS4-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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 QUESTION
30 sec • 1 pt
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.
Tags
NGSS.HS-LS2-6
NGSS.HS-LS3-2
NGSS.HS-LS4-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Genetic drift occurs most quickly in -
small populations.
populations with large genetic variation.
populations with small genetic variation.
large populations.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
Tags
NGSS.HS-LS3-2
NGSS.HS-LS4-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A widespread occurrence of disease is called a(n) ______________.
allele frequency
natural disaster
bottleneck effect
epidemic
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
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
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