Question 1

Bacteriophage replication differs from animal virus replication because only bacteriophage replication involves

Accepted Answer

A) adsorption to specific receptors. 
B) assembly of viral components. 
C) replication of viral nucleic acid. 
D) injection of naked nucleic acid into the host cell. 
E) lysis of the host cell. 
A) adsorption to specific receptors. 
B) assembly of viral components. 
C) replication of viral nucleic acid. 
D) injection of naked nucleic acid into the host cell. 
E) lysis of the host cell.

Question 2

Shingles is an example of

Accepted Answer

A) reactivation of latent virus. 
B) lytic virus. 
C) persistent virus. 
D) lysogeny. 
E) transformation. 
A) reactivation of latent virus. 
B) lytic virus. 
C) persistent virus. 
D) lysogeny. 
E) transformation.

Question 3

An example of a persistent viral infection is

Accepted Answer

A) Hepatitis A infection. 
B) Influenza. 
C) Herpes Simplex Virus infection. 
D) Human Immunodeficiency Virus infection. 
E) Varicellavirus infection. 
A) Hepatitis A infection. 
B) Influenza. 
C) Herpes Simplex Virus infection. 
D) Human Immunodeficiency Virus infection. 
E) Varicellavirus infection.

Question 4

Compare and contrast the lytic cycle of infection of a DNA virus and an RNA virus.

Accepted Answer

The lytic cycle of infection for DNA vir

Question 5

Which of the following is NOT used as a criterion to classify viruses?

Accepted Answer

A) biochemical tests 
B) morphology 
C) nucleic acid 
D) size 
E) number of capsomeres 
A) biochemical tests 
B) morphology 
C) nucleic acid 
D) size 
E) number of capsomeres

Question 6

What contributes to antigenic shift in influenza viruses?

Accepted Answer

A) worldwide distribution of the virus 
B) a segmented genome 
C) attachment spikes 
D) ease of virus transmission 
E) different virus subtypes 
A) worldwide distribution of the virus 
B) a segmented genome 
C) attachment spikes 
D) ease of virus transmission 
E) different virus subtypes

Question 7

A feature that may be found in viruses but never in bacteria is

Accepted Answer

A) the ability to pass through 0.22 micrometer pore filters. 
B) may contain an RNA genome. 
C) they cannot reproduce themselves outside a host. 
D) a sensitivity to antibiotics. 
E) an ability to infect more than one type of host. 
A) the ability to pass through 0.22 micrometer pore filters. 
B) may contain an RNA genome. 
C) they cannot reproduce themselves outside a host. 
D) a sensitivity to antibiotics. 
E) an ability to infect more than one type of host.

Question 8

Viruses that utilize reverse transcriptase belong to the virus families

Accepted Answer

A) Retroviridae and Picornaviridae. 
B) Herpesviridae and Retroviridae. 
C) Hepadnaviridae and Retroviridae. 
D) Herpesviridae and Poxviridae. 
E) Rhabdoviridae and Herpesviridae. 
A) Retroviridae and Picornaviridae. 
B) Herpesviridae and Retroviridae. 
C) Hepadnaviridae and Retroviridae. 
D) Herpesviridae and Poxviridae. 
E) Rhabdoviridae and Herpesviridae.

Question 9

Oncogenic viruses

Accepted Answer

A) cause acute infections. 
B) are genetically unstable. 
C) cause tumors to develop. 
D) are lytic viruses that kill the host cell. 
E) have no effect on the host cell. 
A) cause acute infections. 
B) are genetically unstable. 
C) cause tumors to develop. 
D) are lytic viruses that kill the host cell. 
E) have no effect on the host cell.

Question 10

Continuous cell lines differ from primary cell lines in that

Accepted Answer

A) viruses can be grown in continuous cell lines. 
B) continuous cell lines always have to be re-isolated from animal tissues. 
C) continuous cell lines are derived from primary cell lines. 
D) continuous cell lines can be maintained through an indefinite number of generations. 
E) continuous cell lines are from human embryos. 
A) viruses can be grown in continuous cell lines. 
B) continuous cell lines always have to be re-isolated from animal tissues. 
C) continuous cell lines are derived from primary cell lines. 
D) continuous cell lines can be maintained through an indefinite number of generations. 
E) continuous cell lines are from human embryos.

Question 11

Figure 13.2
  
-Assume a patient has influenza.During which time on the graph in Figure 13.2 would the patient show the symptoms of the illness?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e 
A) a 
B) b 
C) c 
D) d 
E) e

Question 12

A viral species is a group of viruses that

Accepted Answer

A) has the same morphology and nucleic acid. 
B) has the same genetic information and ecological niche. 
C) infects the same cells and cause the same disease. 
D) cannot be defined. 
A) has the same morphology and nucleic acid. 
B) has the same genetic information and ecological niche. 
C) infects the same cells and cause the same disease. 
D) cannot be defined.

Question 13

Binomial nomenclature is used to name viruses.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following would be the first step in biosynthesis of a virus with a - (minus)strand of RNA?

Accepted Answer

A) synthesis of DNA from an RNA template 
B) synthesis of double-stranded RNA from an RNA template 
C) synthesis of double-stranded RNA from a DNA template 
D) transcription of mRNA from DNA 
E) synthesis of DNA from a DNA template 
A) synthesis of DNA from an RNA template 
B) synthesis of double-stranded RNA from an RNA template 
C) synthesis of double-stranded RNA from a DNA template 
D) transcription of mRNA from DNA 
E) synthesis of DNA from a DNA template

Question 15

Most drugs that interfere with viral multiplication also interfere with host cell function.

Accepted Answer

A) True 
 B)False

Question 16

Figure 13.2
  
-Assume a patient had chickenpox (human herpesvirus 3)as a child.Which line on the graph in Figure 13.2 would show the number of viruses present in this person as a 60-year-old with shingles (human herpesvirus 3)?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e 
A) a 
B) b 
C) c 
D) d 
E) e

Question 17

Some viruses,such as human herpesvirus 1,infect a cell without causing symptoms.These are called

Accepted Answer

A) latent viruses. 
B) lytic viruses. 
C) phages. 
D) slow viruses. 
E) unconventional viruses. 
A) latent viruses. 
B) lytic viruses. 
C) phages. 
D) slow viruses. 
E) unconventional viruses.

Question 18

________ were first identified in cancer-causing viruses and can induce ________ in infected cells.

Accepted Answer

A) Herpes viruses;lesions 
B) Oncogenes;transformation 
C) T antigens;lysis 
D) Glycoprotein spikes;syncytia formation 
E) Segmented genomes;reassortment 
A) Herpes viruses;lesions 
B) Oncogenes;transformation 
C) T antigens;lysis 
D) Glycoprotein spikes;syncytia formation 
E) Segmented genomes;reassortment

Question 19

Bacteriophages derive all of the following from the host cell EXCEPT

Accepted Answer

A) lysozyme. 
B) tRNA. 
C) amino acids. 
D) nucleotides. 
E) ATP. 
A) lysozyme. 
B) tRNA. 
C) amino acids. 
D) nucleotides. 
E) ATP.

Question 20

Which of the following places these items in the correct order for DNA-virus replication?
1)Maturation
2)DNA synthesis
3)Transcription
4)Translation

Accepted Answer

A) 1;2;3;4 
B) 2;3;4;1 
C) 3;4;1;2 
D) 4;1;2;3 
E) 4;3;2;1 
A) 1;2;3;4 
B) 2;3;4;1 
C) 3;4;1;2 
D) 4;1;2;3 
E) 4;3;2;1

Exam 13: Viruses,viroids,and Prions

Bacteriophage replication differs from animal virus replication because only bacteriophage replication involves

Shingles is an example of

An example of a persistent viral infection is

Compare and contrast the lytic cycle of infection of a DNA virus and an RNA virus.

Which of the following is NOT used as a criterion to classify viruses?

What contributes to antigenic shift in influenza viruses?

A feature that may be found in viruses but never in bacteria is

Viruses that utilize reverse transcriptase belong to the virus families

Oncogenic viruses

Continuous cell lines differ from primary cell lines in that

Figure 13.2 -Assume a patient has influenza.During which time on the graph in Figure 13.2 would the patient show the symptoms of the illness?

A viral species is a group of viruses that

Binomial nomenclature is used to name viruses.

Which of the following would be the first step in biosynthesis of a virus with a - (minus)strand of RNA?

Most drugs that interfere with viral multiplication also interfere with host cell function.

Figure 13.2 -Assume a patient had chickenpox (human herpesvirus 3)as a child.Which line on the graph in Figure 13.2 would show the number of viruses present in this person as a 60-year-old with shingles (human herpesvirus 3)?

Some viruses,such as human herpesvirus 1,infect a cell without causing symptoms.These are called

________ were first identified in cancer-causing viruses and can induce ________ in infected cells.

Bacteriophages derive all of the following from the host cell EXCEPT

Which of the following places these items in the correct order for DNA-virus replication? 1)Maturation 2)DNA synthesis 3)Transcription 4)Translation

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Dna Technology

Classification of Microorganisms

The Prokaryotes: Domains Bacteria and Archaea

The Eukaryotes: Fungi, algae, protozoa, and Helminths

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

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were first identified in cancer-causing viruses and can induce in infected cells.