Question 1

A cigarette smoker with lung cancer will not pass any smoking-induced lung cancer mutations to his children because the smoking-induced mutations:

Accepted Answer

A)  Are in germ cells
B)  Are in somatic cells
C)  Are in gametes
D)  Are not in DNA
E)  Do not affect the phenotype of the lung cellsF) A) and B)
G) A) and C)

Question 2

In a wild population without fishing,predators would normally ___ top predatory fish.

Accepted Answer

A)  Eat larger
B)  Eat smaller
C)  Eat all sizes of a
D)  Not eat any size of aE) A) and D)
F) B) and C)

Question 3

The French naturalist,who in 1749 became one of the first scientists to suggest that closely related species arose from a common ancestor and were changing,was:

Accepted Answer

A)  Charles Darwin
B)  Georges Buffon
C)  James Hutton
D)  Georges Cuvier
E)  Charles LyellF) A) and B)
G) B) and C)

Question 4

Figure 11.21 
-What was the dependent variable in Figure 11.21?

Accepted Answer

A)  The mean weight of harvested fish
B)  The generation
C)  The age of the fish
D)  The size at which the fish were harvested
E)  The species of fishF) A) and E)
G) B) and D)

Question 5

According to Darwin,natural selection usually:

Accepted Answer

A)  Neither preserves nor rejects harmful variations in a population
B)  Preserves harmful variations and rejects favorable variations in a population
C)  Preserves favorable and harmful variations in a population
D)  Preserves favorable variations and rejects harmful variations in a populationE) B) and D)
F) C) and D)

Question 6

The entire collection of genes and their alleles is a population's:

Accepted Answer

A)  Genotype
B)  Phenotype
C)  Dominant traits
D)  Recessive traits
E)  Gene poolF) A) and E)
G) All of the above

Question 7

Antibiotic resistance is becoming more common in disease-causing bacteria because:

Accepted Answer

A)  Antibiotics are used in feed for livestock
B)  Antibiotics are sometimes prescribed for viral infections (due to pressure from patients) 
C)  Some patients do not take the antibiotics as directed
D)  Antibiotics are used to treat infections in cattle, chickens, and other animals used for agricultural purposes
E)  All are correctF) B) and C)
G) A) and E)

Question 8

Historically fishermen kept larger fish and left smaller juvenile fish.Over time the average size of the fish would:

Accepted Answer

A)  Increase by natural selection
B)  Decrease by genetic drift
C)  Decrease by natural selection
D)  Increase by genetic drift
E)  Remain unchangedF) All of the above
G) C) and D)

Question 9

Nonrandom mating,gene flow,and genetic drift are mechanisms of microevolution.

Accepted Answer

A) True 
 B)False

Question 10

In the Hardy-Weinberg equation,p2 + 2pq + q2 = 1: 2pq represents:

Accepted Answer

A)  The frequency of homozygous recessive individuals
B)  The frequency of homozygous dominant individuals
C)  The frequency of heterozygous individuals
D)  The frequency of homozygous recessive and heterozygous individuals
E)  The frequency of homozygous dominant and heterozygous individualsF) B) and C)
G) A) and C)

Question 11

Today,40% of hospital Staphylococcus infections are resistant to all antibiotics except one.

Accepted Answer

A) True 
 B)False

Question 12

The chance that a mutation will occur is independent of whether a new phenotype will benefit a population.

Accepted Answer

A) True 
 B)False

Question 13

The North American bison was hunted to near extinction in the 1800s,and has since recovered,but with decreased genetic diversity.This is an example of:

Accepted Answer

A)  Founder effect
B)  A bottleneck
C)  Natural selection
D)  Increased mutation rate
E)  Gene flowF) A) and D)
G) D) and E)

Question 14

Hardy-Weinberg equilibrium will not occur in a population in which:

Accepted Answer

A)  Mutations do not occur
B)  Individuals mate at random
C)  Natural selection does not occur
D)  Individuals immigrate or emigrate
E)  Sexual selection does not occurF) A) and D)
G) D) and E)

Question 15

If an environment changes rapidly,organisms with ____ will be more likely to survive and reproduce.

Accepted Answer

A)  Existing beneficial mutations
B)  Existing neutral mutations
C)  The ability to produce beneficial mutations
D)  The ability to adapt their genotype
E)  The correct allele frequencyF) A) and C)
G) B) and D)

Question 16

In the Hardy-Weinberg equation,p2 + 2pq + q2 = 1.If the dominant allele frequency is 0.8,what percent of the population will be homozygous recessive?

Accepted Answer

A)  0.64
B)  0.32
C)  0.04
D)  0.16
E)  0.40F) B) and D)
G) A) and C)

Question 17

Natural selection is random because no individuals are eliminated from reproducing due to different environments.

Accepted Answer

A) True 
 B)False

Question 18

Larger fish would represent ____ in an ecosystem.

Accepted Answer

A)  Producers
B)  Primary consumers
C)  Detritovores
D)  Herbivores
E)  Keystone predatorsF) A) and D)
G) None of the above

Question 19

Sexually dimorphic features do not include:

Accepted Answer

A)  Colored plumage
B)  Intelligence
C)  Antlers
D)  Body size
E)  None are sexually dimorphic featuresF) None of the above
G) C) and D)

Question 20

A fish that eats other fish that in turn eat algae is a:

Accepted Answer

A)  Secondary consumer
B)  Producers
C)  Primary consumers
D)  Detritovores
E)  HerbivoresF) A) and E)
G) C) and D)

Exam 11: The Forces of Evolutionary Change

According to Darwin,natural selection usually:

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Hardy-Weinberg equilibrium will not occur in a population in which:

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In the Hardy-Weinberg equation,p2 + 2pq + q2 = 1: 2pq represents:

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In the Hardy-Weinberg equation,p2 + 2pq + q2 = 1.If the dominant allele frequency is 0.8,what percent of the population will be homozygous recessive?

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A fish that eats other fish that in turn eat algae is a:

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In a wild population without fishing,predators would normally ___ top predatory fish.

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Nonrandom mating,gene flow,and genetic drift are mechanisms of microevolution.

Correct AnswerverifiedShow Answer

If an environment changes rapidly,organisms with ____ will be more likely to survive and reproduce.

Correct AnswerverifiedShow Answer

A cigarette smoker with lung cancer will not pass any smoking-induced lung cancer mutations to his children because the smoking-induced mutations:

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Larger fish would represent ____ in an ecosystem.

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Today,40% of hospital Staphylococcus infections are resistant to all antibiotics except one.

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Antibiotic resistance is becoming more common in disease-causing bacteria because:

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Historically fishermen kept larger fish and left smaller juvenile fish.Over time the average size of the fish would:

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Figure 11.21 -What was the dependent variable in Figure 11.21?

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Natural selection is random because no individuals are eliminated from reproducing due to different environments.

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The entire collection of genes and their alleles is a population's:

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The North American bison was hunted to near extinction in the 1800s,and has since recovered,but with decreased genetic diversity.This is an example of:

Correct AnswerverifiedShow Answer

The French naturalist,who in 1749 became one of the first scientists to suggest that closely related species arose from a common ancestor and were changing,was:

Correct AnswerverifiedShow Answer

Sexually dimorphic features do not include:

Correct AnswerverifiedShow Answer

The chance that a mutation will occur is independent of whether a new phenotype will benefit a population.

Correct AnswerverifiedShow Answer

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In the Hardy-Weinberg equation,p² + 2pq + q² = 1: 2pq represents:

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In the Hardy-Weinberg equation,p² + 2pq + q² = 1.If the dominant allele frequency is 0.8,what percent of the population will be homozygous recessive?

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