Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

Evolution occurs in individuals,not populations.

Accepted Answer

A) True 
 B)False

Question 3

Babies that are at a low birth weight are more likely to have health problems,while women will have difficulty delivering babies with high birth weight.Together this leads to ______ for babies of average birth weight.

Accepted Answer

A)  stabilizing selection
B)  disruptive selection
C)  directional selection
D)  artificial selection
E)  sexual selectionF) C) and D)
G) A) and E)

Question 4

The few ancestors of the Galapagos finches who colonized the islands is an example of

Accepted Answer

A)  a bottleneck.
B)  natural selection.
C)  increased mutation rate.
D)  artificial selection.
E)  founder effect.F) A) and E)
G) A) and D)

Question 5

Use the Hardy-Weinberg equations: p + q = 1 and p2 + 2pq + q2 = 1.If the dominant allele frequency is 0.8,then what percent of the population will be heterozygous?

Accepted Answer

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

Question 6

Sexual selection is a type of natural selection resulting from variation in the ability to obtain mates.

Accepted Answer

A) True 
 B)False

Question 7

A male peacock has enormous tail feathers that it uses in mating displays to attract females.While the tail feathers are an advantage in mating,what is the potential disadvantage of these feathers to the male?

Accepted Answer

A)  The feathers require a lot of energy to produce.
B)  Bright feathers make males less susceptible to predation.
C)  The feathers make the male more attractive to other males.
D)  There are no disadvantages to having large tail feathers.
E)  The large tail feathers would make it easier to fly.F) A) and B)
G) B) and C)

Question 8

A gradual change from an ancestral type was referred to by Darwin as

Accepted Answer

A)  uniformitarianism.
B)  descent with modification.
C)  fossils.
D)  natural selection.
E)  special creation.F) A) and E)
G) A) and B)

Question 9

The frequency of the sickle cell allele is kept up by the heterozygote advantage under natural selection.

Accepted Answer

A) True 
 B)False

Question 10

Alleles conferring red plumage to cardinal males are common because red plumage

Accepted Answer

A)  makes males less susceptible to predation.
B)  is helpful in attracting prey.
C)  is preferred by female cardinals in choosing a mate.
D)  allows male cardinals to easily identify each other.
E)  is an example of genetic drift.F) B) and C)
G) A) and C)

Question 11

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 pool.F) D) and E)
G) B) and D)

Question 12

Use the Hardy-Weinberg equations: p + q = 1 and p2 + 2pq + q2 = 1.If the dominant allele frequency is 0.8,then what percent of the population will be homozygous dominant?

Accepted Answer

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

Question 13

In the Hardy-Weinberg equation,p + q = 1,p and q represent the frequency of alleles in a population of diploid organisms if

Accepted Answer

A)  two or more alleles exist for that gene.
B)  two or more genes are needed to express a trait.
C)  only two alleles exist for that gene.
D)  the trait is polygenic.
E)  only one allele exists for that genE.F) B) and D)
G) All of the above

Question 14

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 answers are correct.F) A) and D)
G) D) and E)

Question 15

If you were at an historical site,and you found a case with a book marked "Author's original Copy" and the book was called On the Origin of Species by Means of Natural Selection you would be in the home of

Accepted Answer

A)  Alfred Russel Wallace.
B)  Jean Lamarck.
C)  Georges Buffon.
D)  Charles Darwin.
E)  Charles Lyell.F) A) and C)
G) A) and B)

Exam 12: Forces of Evolutionary Change

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

Correct Answer
verified

The frequency of the sickle cell allele is kept up by the heterozygote advantage under natural selection.

Correct Answer
verified

Evolution occurs in individuals,not populations.

Correct Answer
verified

A gradual change from an ancestral type was referred to by Darwin as

Correct Answer
verified

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

Correct Answer
verified

A male peacock has enormous tail feathers that it uses in mating displays to attract females.While the tail feathers are an advantage in mating,what is the potential disadvantage of these feathers to the male?

Correct Answer
verified

If you were at an historical site,and you found a case with a book marked "Author's original Copy" and the book was called On the Origin of Species by Means of Natural Selection you would be in the home of

Correct Answer
verified

Babies that are at a low birth weight are more likely to have health problems,while women will have difficulty delivering babies with high birth weight.Together this leads to ______ for babies of average birth weight.

Correct Answer
verified

In the Hardy-Weinberg equation,p + q = 1,p and q represent the frequency of alleles in a population of diploid organisms if

Correct Answer
verified

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

Correct Answer
verified

Use the Hardy-Weinberg equations: p + q = 1 and p² + 2pq + q² = 1.If the dominant allele frequency is 0.8,then what percent of the population will be heterozygous?

Correct Answer
verified

Sexual selection is a type of natural selection resulting from variation in the ability to obtain mates.

Correct Answer
verified

Use the Hardy-Weinberg equations: p + q = 1 and p² + 2pq + q² = 1.If the dominant allele frequency is 0.8,then what percent of the population will be homozygous dominant?

Correct Answer
verified

Alleles conferring red plumage to cardinal males are common because red plumage

Correct Answer
verified

The few ancestors of the Galapagos finches who colonized the islands is an example of

Correct Answer
verified

Exam 12: Forces of Evolutionary Change

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

Correct AnswerverifiedShow Answer

The frequency of the sickle cell allele is kept up by the heterozygote advantage under natural selection.

Correct AnswerverifiedShow Answer

Evolution occurs in individuals,not populations.

Correct AnswerverifiedShow Answer

A gradual change from an ancestral type was referred to by Darwin as

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A male peacock has enormous tail feathers that it uses in mating displays to attract females.While the tail feathers are an advantage in mating,what is the potential disadvantage of these feathers to the male?

Correct AnswerverifiedShow Answer

If you were at an historical site,and you found a case with a book marked "Author's original Copy" and the book was called On the Origin of Species by Means of Natural Selection you would be in the home of

Correct AnswerverifiedShow Answer

Babies that are at a low birth weight are more likely to have health problems,while women will have difficulty delivering babies with high birth weight.Together this leads to ______ for babies of average birth weight.

Correct AnswerverifiedShow Answer

In the Hardy-Weinberg equation,p + q = 1,p and q represent the frequency of alleles in a population of diploid organisms if

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Use the Hardy-Weinberg equations: p + q = 1 and p2 + 2pq + q2 = 1.If the dominant allele frequency is 0.8,then what percent of the population will be heterozygous?

Correct AnswerverifiedShow Answer

Sexual selection is a type of natural selection resulting from variation in the ability to obtain mates.

Correct AnswerverifiedShow Answer

Use the Hardy-Weinberg equations: p + q = 1 and p2 + 2pq + q2 = 1.If the dominant allele frequency is 0.8,then what percent of the population will be homozygous dominant?

Correct AnswerverifiedShow Answer

Alleles conferring red plumage to cardinal males are common because red plumage

Correct AnswerverifiedShow Answer

The few ancestors of the Galapagos finches who colonized the islands is an example of

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Use the Hardy-Weinberg equations: p + q = 1 and p² + 2pq + q² = 1.If the dominant allele frequency is 0.8,then what percent of the population will be heterozygous?

Correct Answer
verified

Correct Answer
verified

Use the Hardy-Weinberg equations: p + q = 1 and p² + 2pq + q² = 1.If the dominant allele frequency is 0.8,then what percent of the population will be homozygous dominant?

Correct Answer
verified

Correct Answer
verified

Correct Answer
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