Question 1

A mutation that drastically changes thphenotypes of an individual ancan leato thindividual's death is

Accepted Answer

A) a beneficial mutation. 
B) a lethal mutation. 
C) a random mutation. 
D) a neutral mutation. 
E) none of these. 
A) a beneficial mutation. 
B) a lethal mutation. 
C) a random mutation. 
D) a neutral mutation. 
E) none of these.

Question 2

Thmigratory patterns of many animals encourages

Accepted Answer

A) a bottle neck. 
B) mutation. 
C) a founder effect. 
D) gene flow. 
E) genetic drift. 
A) a bottle neck. 
B) mutation. 
C) a founder effect. 
D) gene flow. 
E) genetic drift.

Question 3

Thvariety of beaks founin Hawaiian honeycreepers is an examplof

Accepted Answer

A) analogous structures. 
B) mutation. 
C) morphological convergence. 
D) morphological divergence. 
E) key innovation. 
A) analogous structures. 
B) mutation. 
C) morphological convergence. 
D) morphological divergence. 
E) key innovation.

Question 4

In order to experiencevolution, a population cannot remain in

Accepted Answer

A) fluctuation. 
B) genetic equilibrium. 
C) the same region. 
D) the same habitat. 
E) any of these. 
A) fluctuation. 
B) genetic equilibrium. 
C) the same region. 
D) the same habitat. 
E) any of these.

Question 5

A physical barrier that prevents individuals frobreeding is callea(n)

Accepted Answer

A) postzygotic mechanism. 
B) prezygotic mechanism. 
C) behavioral mechanism. 
D) temporal mechanism. 
E) hybrid mechanism. 
A) postzygotic mechanism. 
B) prezygotic mechanism. 
C) behavioral mechanism. 
D) temporal mechanism. 
E) hybrid mechanism.

Question 6

When allelfrequency changes, a population is saito no longer bin

Accepted Answer

A) genetic equilibrium. 
B) isolation. 
C) upheaval. 
D) fluctuation. 
E) transition. 
A) genetic equilibrium. 
B) isolation. 
C) upheaval. 
D) fluctuation. 
E) transition.

Question 7

A femalhorscan matwith a maldonkey but they will produca mule.This is an examplof what typof isolation mechanism?

Accepted Answer

A) hybrid sterility 
B) ecological 
C) behavioral 
D) mechanical 
E) postzygotic 
A) hybrid sterility 
B) ecological 
C) behavioral 
D) mechanical 
E) postzygotic

Question 8

Tholorder Amish in Lancaster County is an examplof a population that is undergoing

Accepted Answer

A) a bottle neck. 
B) mutation. 
C) a founder effect. 
D) gene flow. 
E) genetic drift. 
A) a bottle neck. 
B) mutation. 
C) a founder effect. 
D) gene flow. 
E) genetic drift.

Question 9

__________ changes thDNA but has no impact upon thindividual.

Accepted Answer

A) A beneficial mutation 
B) A lethal mutation 
C) A random mutation 
D) A neutral mutation 
E) None of these 
A) A beneficial mutation 
B) A lethal mutation 
C) A random mutation 
D) A neutral mutation 
E) None of these

Question 10

Onextremvariation of a phenotypwill bfounduring which typof selection?

Accepted Answer

A) stabilizing 
B) directional 
C) disruptive 
D) frequent
) 
E) none of these 
A) stabilizing 
B) directional 
C) disruptive 
D) frequent
) 
E) none of these

Question 11

Which population's allelfrequency is considereto bfixed?

Accepted Answer

A) 27 sparrows: 14 are HH. 
B) 42 cardinals: 15 are HH, 19Hh, and 8 hh. 
C) 333 robins: 32% are HH, 45% Hh, 23% hh 
D) all of these 
E) none of these 
A) 27 sparrows: 14 are HH. 
B) 42 cardinals: 15 are HH, 19Hh, and 8 hh. 
C) 333 robins: 32% are HH, 45% Hh, 23% hh 
D) all of these 
E) none of these

Question 12

What is it callewhen an individual out reproduces others within thpopulation becausthey havan easier timsecuring mates?

Accepted Answer

A) directional selection 
B) sexual selection 
C) dominance 
D) sexual handicap 
E) disruptive selection 
A) directional selection 
B) sexual selection 
C) dominance 
D) sexual handicap 
E) disruptive selection

Question 13

Nondisjunction of chromosomes during meiosis can leato

Accepted Answer

A) directional selection. 
B) disruptive selection. 
C) sympatric speciation. 
D) hybrid sterility. 
E) allopatric speciation. 
A) directional selection. 
B) disruptive selection. 
C) sympatric speciation. 
D) hybrid sterility. 
E) allopatric speciation.

Question 14

Predator hunting tactics anprey defensmechanisms arexamples of

Accepted Answer

A) mutualism. 
B) competition. 
C) coevolution. 
D) disruptive selection. 
E) sexual selection. 
A) mutualism. 
B) competition. 
C) coevolution. 
D) disruptive selection. 
E) sexual selection.

Question 15

A mutation that results in thdeath of thindividual is called

Accepted Answer

A) a beneficial mutation. 
B) a lethal mutation. 
C) a random mutation. 
D) a spontaneous mutation. 
E) none of these. 
A) a beneficial mutation. 
B) a lethal mutation. 
C) a random mutation. 
D) a spontaneous mutation. 
E) none of these.

Question 16

A trait with two forms is referreto as being

Accepted Answer

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

Question 17

If a population is experiencing genetic equilibriuit is not

Accepted Answer

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

Exam 12: Processes of Evolution

A mutation that drastically changes thphenotypes of an individual ancan leato thindividual's death is

Thmigratory patterns of many animals encourages

Thvariety of beaks founin Hawaiian honeycreepers is an examplof

In order to experiencevolution, a population cannot remain in

A physical barrier that prevents individuals frobreeding is callea(n)

When allelfrequency changes, a population is saito no longer bin

A femalhorscan matwith a maldonkey but they will produca mule.This is an examplof what typof isolation mechanism?

Tholorder Amish in Lancaster County is an examplof a population that is undergoing

__________ changes thDNA but has no impact upon thindividual.

Onextremvariation of a phenotypwill bfounduring which typof selection?

Which population's allelfrequency is considereto bfixed?

What is it callewhen an individual out reproduces others within thpopulation becausthey havan easier timsecuring mates?

Nondisjunction of chromosomes during meiosis can leato

Predator hunting tactics anprey defensmechanisms arexamples of

A mutation that results in thdeath of thindividual is called

A trait with two forms is referreto as being

If a population is experiencing genetic equilibriuit is not

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 Evolutionunit

Population Ecology

Communities and Ecosystems

The Biosphere and Human Eff Ects

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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