Question 1

Individuals whose red blood cells are the correct shape and are able to resist malaria have a better chance of reaching reproductive age.This is known as

Accepted Answer

A)  heterozygote advantage.
B)  homozygote advantage.
C)  artificial selection.
D)  heterozygote disadvantage.
E)  dominant advantagE.F) B) and D)
G) D) and E)

Question 2

The French taxonomist who,in 1809,was the first scientist to suggest that organisms that use one part of their body repeatedly would increase their abilities was

Accepted Answer

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

Question 3

If you were studying fruit flies and found that every time you began an experiment on a gene with one allele leading to blindness when found in homozygous condition,there were always more heterozygotes with this allele than expected,you might suspect that the heterozygote had some selective advantge.

Accepted Answer

A) True 
 B)False

Question 4

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) B) and D)
G) B) and E)

Question 5

If you were going to apply the principles of Darwin to business,you would allow employees to submit a wide range of ideas and then test many,keeping the winners because in evolution,natural selection

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 population.
E)  No answer is correct.F) B) and E)
G) A) and C)

Question 6

Natural populations usually fulfill the conditions needed for Hardy-Weinberg equilibrium.

Accepted Answer

A) True 
 B)False

Question 7

At Hardy-Weinberg equilibrium

Accepted Answer

A)  allele frequencies remain constant from one generation to the next so evolution does not occur.
B)  None of the answers are correct.
C)  allele frequencies remain constant from one generation to the next so evolution occurs.
D)  allele frequencies change from one generation to the next so evolution occurs.
E)  allele frequencies change from one generation to the next so evolution does not occur.F) B) and C)
G) A) and B)

Question 8

The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is

Accepted Answer

A)  directional selection.
B)  disruptive selection.
C)  stabilizing selection.
D)  artificial selection.
E)  uniformitarianism.F) B) and D)
G) B) and C) A

Question 9

A population declines when

Accepted Answer

A)  death rate exceeds reproductive rate.
B)  reproductive rate exceeds death rate.
C)  reproductive and death rates are equal.
D)  smaller animals are selectively removeD.
E)  animals are removed randomly.F) B) and E)
G) A) and D)

Question 10

The three types of natural selection are

Accepted Answer

A)  directional selection,artificial selection,and disruptive selection.
B)  directional selection,artificial selection,and normalizing selection.
C)  disruptive selection,stabilizing selection,and normalizing selection.
D)  disruptive selection,stabilizing selection,and artificial selection.
E)  directional selection,disruptive selection,and stabilizing selection.F) A) and D)
G) C) and D)

Question 11

Darwin believed that because of "differential reproductive success" a population would change over time.

Accepted Answer

A) True 
 B)False

Question 12

The relatively short-term changes in allele frequencies within a species or population is

Accepted Answer

A)  uniformitarianism.
B)  artificial selection.
C)  microevolution.
D)  natural selection.
E)  macroevolution.F) A) and D)
G) B) and C) C

Question 13

The bottleneck effect

Accepted Answer

A)  occurs when many members of a population die,resulting in a great loss of genetic diversity.
B)  occurs when many members of a population reproduce,causing too much genetic diversity within the population.
C)  occurs when small groups of individuals leave their home population and establish new settlements,mating only among themselves.
D)  occurs when large groups of individuals leave their home population and establish new settlements,mating only among themselves.
E)  does not occur in naturE.F) A) and B)
G) B) and E)

Question 14

The founder effect

Accepted Answer

A)  occurs when large groups of individuals leave their home population and establish new settlements,mating only among themselves.
B)  occurs when small groups of individuals leave their home population and establish new settlements,mating only among themselves.
C)  occurs when many members of a population die,resulting in a great loss of genetic diversity.
D)  occurs when many members of a population reproduce causing too much genetic diversity within the population.
E)  does not occur in naturE.F) B) and C)
G) A) and E)

Question 15

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

Accepted Answer

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

Question 16

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 individuals.F) A) and E)
G) A) and C)

Question 17

Sexually dimorphic features do not include

Accepted Answer

A)  colored plumage.
B)  intelligence.
C)  antlers.
D)  body size.
E)  All of the choices are sexually dimorphic features.F) A) and D)
G) None of the above

Question 18

Evolution must include a change in

Accepted Answer

A)  the gene pool of a population.
B)  the genes of an individual.
C)  the dominant phenotype.
D)  the recessive phenotype.
E)  the percentage of individuals in a population with the dominant phenotypE.F) All of the above
G) None of the above

Question 19

Since the conditions needed for the Hardy-Weinberg principle do not occur in real populations,this principle has no importance in population studies.

Accepted Answer

A) True 
 B)False

Question 20

The geologist who suggested that natural processes are slow and steady and that the Earth is much older than 6,000 years was

Accepted Answer

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

Exam 12: Forces of Evolutionary Change

Individuals whose red blood cells are the correct shape and are able to resist malaria have a better chance of reaching reproductive age.This is known as

Correct Answer
verified

The French taxonomist who,in 1809,was the first scientist to suggest that organisms that use one part of their body repeatedly would increase their abilities was

Correct Answer
verified
C

Correct Answer
verified

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

Correct Answer
verified

If you were going to apply the principles of Darwin to business,you would allow employees to submit a wide range of ideas and then test many,keeping the winners because in evolution,natural selection

Correct Answer
verified

Natural populations usually fulfill the conditions needed for Hardy-Weinberg equilibrium.

Correct Answer
verified

At Hardy-Weinberg equilibrium

Correct Answer
verified

The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is

Correct Answer
verified
A

A population declines when

Correct Answer
verified

The three types of natural selection are

Correct Answer
verified

Darwin believed that because of "differential reproductive success" a population would change over time.

Correct Answer
verified

The relatively short-term changes in allele frequencies within a species or population is

Correct Answer
verified
C

The bottleneck effect

Correct Answer
verified

The founder effect

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Sexually dimorphic features do not include

Correct Answer
verified

Evolution must include a change in

Correct Answer
verified

Since the conditions needed for the Hardy-Weinberg principle do not occur in real populations,this principle has no importance in population studies.

Correct Answer
verified

The geologist who suggested that natural processes are slow and steady and that the Earth is much older than 6,000 years was

Correct Answer
verified

Exam 12: Forces of Evolutionary Change

Individuals whose red blood cells are the correct shape and are able to resist malaria have a better chance of reaching reproductive age.This is known as

Correct AnswerverifiedShow Answer

The French taxonomist who,in 1809,was the first scientist to suggest that organisms that use one part of their body repeatedly would increase their abilities was

Correct AnswerverifiedC

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If you were going to apply the principles of Darwin to business,you would allow employees to submit a wide range of ideas and then test many,keeping the winners because in evolution,natural selection

Correct AnswerverifiedShow Answer

Natural populations usually fulfill the conditions needed for Hardy-Weinberg equilibrium.

Correct AnswerverifiedShow Answer

At Hardy-Weinberg equilibrium

Correct AnswerverifiedShow Answer

The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is

Correct AnswerverifiedA

A population declines when

Correct AnswerverifiedShow Answer

The three types of natural selection are

Correct AnswerverifiedShow Answer

Darwin believed that because of "differential reproductive success" a population would change over time.

Correct AnswerverifiedShow Answer

The relatively short-term changes in allele frequencies within a species or population is

Correct AnswerverifiedC

The bottleneck effect

Correct AnswerverifiedShow Answer

The founder effect

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Sexually dimorphic features do not include

Correct AnswerverifiedShow Answer

Evolution must include a change in

Correct AnswerverifiedShow Answer

Since the conditions needed for the Hardy-Weinberg principle do not occur in real populations,this principle has no importance in population studies.

Correct AnswerverifiedShow Answer

The geologist who suggested that natural processes are slow and steady and that the Earth is much older than 6,000 years was

Correct AnswerverifiedShow Answer

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C

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A

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C

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

Correct Answer
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