Question 1

Sexual dimorphism has arisen as a result of ____.

Accepted Answer

A)  ​stabilizing selection 
B)  ​heterozygote superiority 
C)  ​kin selection 
D)  ​sexual selection 
E)  ​directional selection 
A)  ​stabilizing selection 
B)  ​heterozygote superiority 
C)  ​kin selection 
D)  ​sexual selection 
E)  ​directional selection D

Question 2

What is the term for a group of organisms of the same species that occupies a specified area?

Accepted Answer

A)  ​Individuals 
B)  ​Species 
C)  ​Population 
D)  ​Polyploids 
E)  ​Tribe 
A)  ​Individuals 
B)  ​Species 
C)  ​Population 
D)  ​Polyploids 
E)  ​Tribe C

Question 3

For the following statements, select the best choice of the four evolutionary processes listed below.​
-This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact.

Accepted Answer

A) ​Mutation 
B) ​gene flow 
C) ​genetic drift 
D) ​natural selection 
A) ​Mutation 
B) ​gene flow 
C) ​genetic drift 
D) ​natural selection B

Question 4

Reproductive isolation is marked by the __________of gene flow between populations.

Accepted Answer

The answer of Reproductive isolation is marked by the __________of...

Question 5

__________ shifts the range of variation in traits in one direction.

Accepted Answer

Directiona

Question 6

Choose the most appropriate letter for each.
-p2

Accepted Answer

A) a reference point that implies stability of gene frequencies through generations 
B) encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups 
C) the genes of an entire population 
D) the frequency of homozygous dominants in a population 
E) the frequencies of dominant and recessive alleles in a population
F)the frequency of heterozygotes in a population
G)the frequency of homozygous recessives in a population
H)heterozygote advantage in regions where malaria is found
I)pesticide-resistant pests 
A) a reference point that implies stability of gene frequencies through generations 
B) encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups 
C) the genes of an entire population 
D) the frequency of homozygous dominants in a population 
E) the frequencies of dominant and recessive alleles in a population
F)the frequency of heterozygotes in a population
G)the frequency of homozygous recessives in a population
H)heterozygote advantage in regions where malaria is found
I)pesticide-resistant pests

Question 7

Choose the most appropriate letter for each.​
-species

Accepted Answer

A) ​a reference point that implies stability of gene frequencies through generations 
B) ​encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups 
C) ​the genes of an entire population 
D) ​the frequency of homozygous dominants in a population 
E) ​the frequencies of dominant and recessive alleles in a population
F)​the frequency of heterozygotes in a population
G)​the frequency of homozygous recessives in a population
H)​heterozygote advantage in regions where malaria is found
I)​pesticide-resistant pests 
A) ​a reference point that implies stability of gene frequencies through generations 
B) ​encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups 
C) ​the genes of an entire population 
D) ​the frequency of homozygous dominants in a population 
E) ​the frequencies of dominant and recessive alleles in a population
F)​the frequency of heterozygotes in a population
G)​the frequency of homozygous recessives in a population
H)​heterozygote advantage in regions where malaria is found
I)​pesticide-resistant pests

Question 8

During a two week course of antibiotics, bacteria can go through over ____ generations.

Accepted Answer

A)  ​100 
B)  ​500 
C)  ​1000 
D)  ​10,000 
E)  ​1,000,000 
A)  ​100 
B)  ​500 
C)  ​1000 
D)  ​10,000 
E)  ​1,000,000

Question 9

Deviations from __________ indicate that a population is evolving.

Accepted Answer

genetic eq

Question 10

Parapatric speciation occurs most often ____.

Accepted Answer

A)  ​within in the same home range 
B)  ​populations inhabiting different areas while maintaining contact along a common border 
C)  ​within a group of interbreeding populations 
D)  ​on either side of geographic barriers 
E)  ​by polyploidy 
A)  ​within in the same home range 
B)  ​populations inhabiting different areas while maintaining contact along a common border 
C)  ​within a group of interbreeding populations 
D)  ​on either side of geographic barriers 
E)  ​by polyploidy

Question 11

__________ selection leads to forms of traits that enhance reproductive success and may result in sexual dimorphism.

Accepted Answer

The answer of __________ selection leads to forms of traits...

Question 12

When a population goes through a bottleneck, ____.

Accepted Answer

A)  ​genetic drift is likely to occur 
B)  ​mutation rates increase 
C)  ​extinction rates decrease 
D)  ​natural selection decreases in intensity 
E)  ​inbreeding decreases 
A)  ​genetic drift is likely to occur 
B)  ​mutation rates increase 
C)  ​extinction rates decrease 
D)  ​natural selection decreases in intensity 
E)  ​inbreeding decreases

Question 13

The sharp reduction of the gene pool and the numbers of a population through a severe epidemic is an example of ____.

Accepted Answer

A)  ​natural selection 
B)  ​genetic isolation 
C)  ​the bottleneck effect 
D)  ​the founder effect 
E)  ​the wild card effect 
A)  ​natural selection 
B)  ​genetic isolation 
C)  ​the bottleneck effect 
D)  ​the founder effect 
E)  ​the wild card effect

Question 14

Imagine the birds that eat peppered moths went extinct. What would happen to the peppered moth population?

Accepted Answer

​At present, the birds provide a selecti

Question 15

Allopatric speciation requires ____.

Accepted Answer

A)  ​accelerated gene flow 
B)  ​physical separation 
C)  ​physical diversity 
D)  ​behavioral diversity 
E)  ​sexual selection 
A)  ​accelerated gene flow 
B)  ​physical separation 
C)  ​physical diversity 
D)  ​behavioral diversity 
E)  ​sexual selection

Question 16

​Figure 17.9
  
-The graph above shows the survival of sociable weavers as a function of body mass. Sociable weaver body mass seems to be an example of ____.

Accepted Answer

A)  ​directional selection 
B)  ​stabilizing selection 
C)  ​sexual selection 
D)  ​disruptive selection 
E)  ​artificial selection 
A)  ​directional selection 
B)  ​stabilizing selection 
C)  ​sexual selection 
D)  ​disruptive selection 
E)  ​artificial selection

Question 17

Individuals of a(n) __________ share a gene pool.

Accepted Answer

The answer of Individuals of a(n) __________ share a gene...

Question 18

Consider the sources of variation in traits among individuals of a species. Which of these can be controlled and which cannot be controlled?

Accepted Answer

​Mutation is a chance event that cannot

Question 19

Choose the most appropriate letter for each.
-q2

Accepted Answer

A) a reference point that implies stability of gene frequencies through generations 
B) encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups 
C) the genes of an entire population 
D) the frequency of homozygous dominants in a population 
E) the frequencies of dominant and recessive alleles in a population
F)the frequency of heterozygotes in a population
G)the frequency of homozygous recessives in a population
H)heterozygote advantage in regions where malaria is found
I)pesticide-resistant pests 
A) a reference point that implies stability of gene frequencies through generations 
B) encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups 
C) the genes of an entire population 
D) the frequency of homozygous dominants in a population 
E) the frequencies of dominant and recessive alleles in a population
F)the frequency of heterozygotes in a population
G)the frequency of homozygous recessives in a population
H)heterozygote advantage in regions where malaria is found
I)pesticide-resistant pests

Question 20

If the frequency of expression of a recessive trait in a population is 16 percent, the frequency of the recessive allele is what percent?

Accepted Answer

A)  ​16 
B)  ​25 
C)  ​40 
D)  ​50 
E)  ​67 
A)  ​16 
B)  ​25 
C)  ​40 
D)  ​50 
E)  ​67

Exam 17: Processes of Evolution

Sexual dimorphism has arisen as a result of ____.

What is the term for a group of organisms of the same species that occupies a specified area?

For the following statements, select the best choice of the four evolutionary processes listed below.​ -This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact.

Reproductive isolation is marked by the __________of gene flow between populations.

__________ shifts the range of variation in traits in one direction.

Choose the most appropriate letter for each. -p2

Choose the most appropriate letter for each.​ -species

During a two week course of antibiotics, bacteria can go through over ____ generations.

Deviations from __________ indicate that a population is evolving.

Parapatric speciation occurs most often ____.

__________ selection leads to forms of traits that enhance reproductive success and may result in sexual dimorphism.

When a population goes through a bottleneck, ____.

The sharp reduction of the gene pool and the numbers of a population through a severe epidemic is an example of ____.

Imagine the birds that eat peppered moths went extinct. What would happen to the peppered moth population?

Allopatric speciation requires ____.

​Figure 17.9 -The graph above shows the survival of sociable weavers as a function of body mass. Sociable weaver body mass seems to be an example of ____.

Individuals of a(n) __________ share a gene pool.

Consider the sources of variation in traits among individuals of a species. Which of these can be controlled and which cannot be controlled?

Choose the most appropriate letter for each. -q2

If the frequency of expression of a recessive trait in a population is 16 percent, the frequency of the recessive allele is what percent?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Filters

For the following statements, select the best choice of the four evolutionary processes listed below. -This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact.

Choose the most appropriate letter for each. -p²

Choose the most appropriate letter for each. -species

Figure 17.9 -The graph above shows the survival of sociable weavers as a function of body mass. Sociable weaver body mass seems to be an example of ____.

Choose the most appropriate letter for each. -q²