
Genetic Equilibrium and Natural Selection
Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary mechanism by which evolution occurs in populations?
Migration
Mutation
Natural selection
Genetic drift
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a population, what happens to alleles that provide a survival advantage?
They remain constant
They decrease in frequency
They increase in frequency
They disappear
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of natural selection favors individuals at one extreme of a trait distribution?
Balancing selection
Disruptive selection
Stabilizing selection
Directional selection
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of stabilizing selection on a population?
Increased variation
Decreased variation
Creation of new species
Shift in trait distribution
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What occurs during disruptive selection?
A new phenotype emerges
The middle phenotype is favored
All phenotypes are equally favored
Extreme phenotypes are favored
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is genetic drift?
A change in allele frequency due to migration
A change in allele frequency due to mutation
A random change in allele frequency
A change in allele frequency due to natural selection
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the founder effect?
A population experiencing a bottleneck
A mutation spreading through a population
A small group starting a new population
A large population colonizing a new area
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