Question 1

With the use of effective vaccines,polio has become a very rare disease and far fewer people get polio than once did.This is an example of ____ selection

Accepted Answer

A)  directional 
B)  stabilizing 
C)  disruptive 
D)  mutational 
E)  infrequent 
A)  directional 
B)  stabilizing 
C)  disruptive 
D)  mutational 
E)  infrequent

Question 2

A major change in evolutionary patterns over long periods of time is best described as

Accepted Answer

A)  macroevolution. 
B)  microevolution. 
C)  allopatric speciation. 
D)  directional selection. 
E)  sympatric speciation. 
A)  macroevolution. 
B)  microevolution. 
C)  allopatric speciation. 
D)  directional selection. 
E)  sympatric speciation.

Question 3

A female horse can mate with a male donkey but they will produce a mule that is sterile.This is an example of what type of isolation mechanism?

Accepted Answer

A)  allopatric 
B)  ecological 
C)  behavioral 
D)  mechanical 
E)  temporal 
A)  allopatric 
B)  ecological 
C)  behavioral 
D)  mechanical 
E)  temporal

Question 4

Traits with more than 2 distinct forms are

Accepted Answer

A)  polymorphic. 
B)  dimorphic. 
C)  codominant. 
D)  heterozygous. 
E)  homozygous. 
A)  polymorphic. 
B)  dimorphic. 
C)  codominant. 
D)  heterozygous. 
E)  homozygous.

Question 5

Which of the following is NOT an application of cladistic analysis?

Accepted Answer

A)  determining the extent of genetic diversity within a population 
B)  conservation of species 
C)  viral pathways between unrelated species 
D)  the causes of extinction events 
E)  all of these are applications of cladistic analysis 
A)  determining the extent of genetic diversity within a population 
B)  conservation of species 
C)  viral pathways between unrelated species 
D)  the causes of extinction events 
E)  all of these are applications of cladistic analysis

Question 6

When gene flow within a population is ended,it will most likely lead to ____ in the immediate future.

Accepted Answer

A)  new variations 
B)  new species 
C)  gene frequencies 
D)  competition 
E)  reproductive isolation 
A)  new variations 
B)  new species 
C)  gene frequencies 
D)  competition 
E)  reproductive isolation

Question 7

Which of the following has led to the extinction of most of the Hawaiian honeycreeper species?

Accepted Answer

A)  destruction of habitat 
B)  introduction of new predators 
C)  introduced diseases 
D)  climate change 
E)  all of these 
A)  destruction of habitat 
B)  introduction of new predators 
C)  introduced diseases 
D)  climate change 
E)  all of these

Question 8

Which of the following is NOT an example of gene flow?

Accepted Answer

A)  several chimpanzees migrate from their colony to join another one close by 
B)  spores from a mushroom are carried by the wind thousands of miles 
C)  wild cherries are eaten by a migrating bird and the seeds released many miles away 
D)  a small group of humans left Africa about 100,000 years ago and established new colonies in the middle East and Europe 
E)  all of these are examples of gene flow 
A)  several chimpanzees migrate from their colony to join another one close by 
B)  spores from a mushroom are carried by the wind thousands of miles 
C)  wild cherries are eaten by a migrating bird and the seeds released many miles away 
D)  a small group of humans left Africa about 100,000 years ago and established new colonies in the middle East and Europe 
E)  all of these are examples of gene flow

Question 9

Macroevolution may have been caused by

Accepted Answer

A)  changes in homeotic genes. 
B)  small, cumulative genetic changes. 
C)  exaptation. 
D)  allopatric speciation. 
E)  more than one of these. 
A)  changes in homeotic genes. 
B)  small, cumulative genetic changes. 
C)  exaptation. 
D)  allopatric speciation. 
E)  more than one of these.

Question 10

Classification.The statements relate to taxonomy.For each one,select the best choice from the following terms.
 a.character
b.clade
c.cladistics
d.evolutionary tree
e.monophyletic group
f.phylogeny
g.sister groups
h.cladogram
i.taxon
-diagram that summarizes how a group of species evolved

Accepted Answer

The answer of Classification.The statements relate to taxonomy.For each one,select...

Question 11

Which population is more likely to be affected by genetic drift?

Accepted Answer

A)  12 squirrels in a forest 
B)  49 herons in a colony 
C)  215 fleas on a dog 
D)  1350 mice in a house 
E)  3000 zebra in a herd 
A)  12 squirrels in a forest 
B)  49 herons in a colony 
C)  215 fleas on a dog 
D)  1350 mice in a house 
E)  3000 zebra in a herd

Question 12

Genetic divergences may ultimately lead to

Accepted Answer

A)  new variations. 
B)  new species. 
C)  new gene frequencies. 
D)  new competition. 
E)  new alleles. 
A)  new variations. 
B)  new species. 
C)  new gene frequencies. 
D)  new competition. 
E)  new alleles.

Question 13

The HbS allele that causes sickle-cell anemia in the recessive condition is most common in areas that experience a high frequency of

Accepted Answer

A)  polio. 
B)  typhus. 
C)  diphtheria. 
D)  malaria. 
E)  cystic fibrosis. 
A)  polio. 
B)  typhus. 
C)  diphtheria. 
D)  malaria. 
E)  cystic fibrosis.

Question 14

Herbicide resistance and Bt genes from GMO crops are now commonly found in weeds.This is an example of

Accepted Answer

A)  genetic drift. 
B)  the bottleneck effect. 
C)  gene flow. 
D)  the Red Queen effect. 
E)  disruptive selection. 
A)  genetic drift. 
B)  the bottleneck effect. 
C)  gene flow. 
D)  the Red Queen effect. 
E)  disruptive selection.

Question 15

Female preference for brightly colored blue or red males in Lake Victoria provides an example of

Accepted Answer

A)  sympatric speciation. 
B)  sexual selection. 
C)  allopatric speciation. 
D)  behavioral isolation. 
E)  a combination of more than one of these. 
A)  sympatric speciation. 
B)  sexual selection. 
C)  allopatric speciation. 
D)  behavioral isolation. 
E)  a combination of more than one of these.

Question 16

Traditional taxonomy differs in what way or ways from cladistics?

Accepted Answer

A)  cladistics includes extinct species in its analysis 
B)  cladistics is more accurate than traditional taxonomy 
C)  traditional taxonomy may include genetic analyses whereas cladistics does not 
D)  traditional taxonomy uses derived characters whereas cladistics does not 
E)  more than one of these is a difference 
A)  cladistics includes extinct species in its analysis 
B)  cladistics is more accurate than traditional taxonomy 
C)  traditional taxonomy may include genetic analyses whereas cladistics does not 
D)  traditional taxonomy uses derived characters whereas cladistics does not 
E)  more than one of these is a difference

Question 17

Match the evolutionary concepts correctly with the descriptions or examples of the concepts.Matches are not necessarily equal.
a.exaptation
g.directional selection
b.ecological isolation
h.disruptive selection
c.mechanical isolation
i.genetic drift
d.behavioral isolation
j.founder effect
e.sexual selection
k.gene flow
f.temporal isolation
-a small population of humans colonize a deserted island and most of them have attached earlobes.One hundred years later,the colony consists of 550 people all with attached earlobes.

Accepted Answer

The answer of Match the evolutionary concepts correctly with the...

Question 18

If a population is experiencing genetic equilibrium it is not

Accepted Answer

A)  stable. 
B)  mutating. 
C)  decreasing. 
D)  increasing. 
E)  evolving. 
A)  stable. 
B)  mutating. 
C)  decreasing. 
D)  increasing. 
E)  evolving.

Question 19

____ is a random change in allele frequency over time that is brought about by chance.

Accepted Answer

A)  Genetic drift 
B)  Gene flow 
C)  Natural selection 
D)  Disruptive selection 
E)  Balanced polymorphism 
A)  Genetic drift 
B)  Gene flow 
C)  Natural selection 
D)  Disruptive selection 
E)  Balanced polymorphism

Question 20

What is the best definition of a population?

Accepted Answer

A)  a group of individuals of two different species that interact with each other 
B)  a group of interbreeding individuals from different geographical regions 
C)  a group of potentially interbreeding individuals of the same species regardless of where they live 
D)  a collection of different species living in the same area at the same time 
E)  a group of interbreeding individuals of the same species in a given area 
A)  a group of individuals of two different species that interact with each other 
B)  a group of interbreeding individuals from different geographical regions 
C)  a group of potentially interbreeding individuals of the same species regardless of where they live 
D)  a collection of different species living in the same area at the same time 
E)  a group of interbreeding individuals of the same species in a given area

Exam 12: Processes of Evolution

With the use of effective vaccines,polio has become a very rare disease and far fewer people get polio than once did.This is an example of ____ selection

A major change in evolutionary patterns over long periods of time is best described as

A female horse can mate with a male donkey but they will produce a mule that is sterile.This is an example of what type of isolation mechanism?

Traits with more than 2 distinct forms are

Which of the following is NOT an application of cladistic analysis?

When gene flow within a population is ended,it will most likely lead to ____ in the immediate future.

Which of the following has led to the extinction of most of the Hawaiian honeycreeper species?

Which of the following is NOT an example of gene flow?

Macroevolution may have been caused by

Classification.The statements relate to taxonomy.For each one,select the best choice from the following terms. a.character b.clade c.cladistics d.evolutionary tree e.monophyletic group f.phylogeny g.sister groups h.cladogram i.taxon -diagram that summarizes how a group of species evolved

Which population is more likely to be affected by genetic drift?

Genetic divergences may ultimately lead to

The HbS allele that causes sickle-cell anemia in the recessive condition is most common in areas that experience a high frequency of

Herbicide resistance and Bt genes from GMO crops are now commonly found in weeds.This is an example of

Female preference for brightly colored blue or red males in Lake Victoria provides an example of

Traditional taxonomy differs in what way or ways from cladistics?

If a population is experiencing genetic equilibrium it is not

____ is a random change in allele frequency over time that is brought about by chance.

What is the best definition of a population?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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