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WorksheetsMechanisms for Evolution
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
A few deer wander out of their native woods into a completely new park where no deer had ever been before. They go on to create an entirely new population.
a)
Genetic Drift
b)
Natural Selection
c)
Non-random mating
d)
Mutation
2.
Yellow toucan birds seek out one another to make babies together and tend to avoid the green toucan birds.
a)
Genetic Drift
b)
Non-random mating
c)
Gene flow
d)
Mutation
3.
During gestation (pregnancy), a developing male pig had a change in his genetic code. The result was that he to produce less nitrogenous solid waste.
a)
Genetic Drift
b)
Non-random mating
c)
Mutation
d)
Natural Selection
4.
Five hundred years after the deer had established a flourishing population in the park, a few of them venture back to their original woods and have babies with the deer there.
a)
Genetic Drift
b)
Mutations
c)
Non-random mating
d)
Gene flow
5.
Wolves from the Arizona mesa were transferred to the Colorado Rockies after a forest fire destroyed their habitat. They quickly became part of the local pack and had offspring.
a)
Mutation
b)
Natural Selection
c)
Genetic Drift
d)
Gene Flow
6.
7 Wild Mustangs were taken from the prairies of Iowa after a Texan Rancher purchased them and provided them with their own pasture. Those 7 Mustangs eventually became 122.
a)
Genetic Drift (small popultaion)
b)
Non-random mating
c)
Gene flow
d)
Mutations
7.
Which of the following is an example of the bottle neck effect?
a)
Bald Eagles are hunted until near extinction, population recovers.
b)
Small group of iguanas floats to an island, starts a new population.
c)
Red fox pups are more likely to survive in a snowy environment if they are born white.
d)
Farmer chooses seeds from largest apples to plant next year. This results in larger apples from year to year.
8.
All of the genetic information found in a population.
a)
population
b)
genetic drift
c)
evolution
d)
gene pool
9.
Gene Flow tends to ___________ genetic variation (diversity)
a)
Increase
b)
Decrease
c)
Stabilize
d)
Exaggerate
10.
Which of the following is an example of the bottleneck effect?
a)
Cheetah populations reach their lowest levels with reduced diversity and as they rebound are so genetically similar they appear to be inbred.
b)
Affected individuals with blue skin can trace their ancestry back to one of the first settlers in the region.
c)
The environment of a fox population changes and over time foxes who are white survive and pass on their genes to their offspring.
d)
Humans choose two dogs they like the characteristics of and breed them together.
11.
Which of the following is NOT an example of natural selection?
a)
People selectively breeding hamsters.
b)
Insect populations developing resistance to certain pesticides.
c)
Bacteria becoming resistant to antibiotics.
d)
Male birds of certain species developing colorful feathers to attract female mates.
12.
Which of the following is an example of the founder effect?
a)
Bald Eagles are hunted until near extinction, population recovers.
b)
Small group of iguanas floats to an island, starts a new population.
c)
Red fox pups are more likely to survive in a snowy environment if they are born white.
d)
Farmer chooses seeds from largest apples to plant next year. This results in larger apples from year to year.
13.
Bats are common in Texas, especially in rocky regions. Bats with longer hang claws have demonstrated higher fitness because of their ability to cling to rock while resting. This adaptation is becoming more frequent in the population. What mechanism of evolution is this?
a)
Natural Selection
b)
Non-random mating
c)
Gene Flow
d)
Genetic Drift
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