Question 1

Fertilized chicken eggs are used to culture some vaccine strains.

Accepted Answer

A) True 
 B)False  True

Question 2

Viroids infect

Accepted Answer

A)  bacteria. 
B)  plants. 
C)  fungi. 
D)  plants and animals. 
E)  all organisms. 
A)  bacteria. 
B)  plants. 
C)  fungi. 
D)  plants and animals. 
E)  all organisms. B

Question 3

Uncontrolled cell division in animals is known as (metastasis/neoplasia/cancer).

Accepted Answer

neoplasia

Question 4

Viral capsids are composed of subunits called (capsomeres/nucleocapsids/prions).

Accepted Answer

The answer of Viral capsids are composed of subunits called...

Question 5

A ________ is a mass of neoplastic cells.

Accepted Answer

A)  diploid culture 
B)  metastasis 
C)  tumor 
D)  gall 
E)  plaque 
A)  diploid culture 
B)  metastasis 
C)  tumor 
D)  gall 
E)  plaque

Question 6

Which of the following infectious particles do not have protein in their structure?

Accepted Answer

A)  bacteriophages 
B)  prions 
C)  animal viruses 
D)  viroids 
E)  both prions and viroids 
A)  bacteriophages 
B)  prions 
C)  animal viruses 
D)  viroids 
E)  both prions and viroids

Question 7

The virions shown in Figure have a (complex/helical/polyhedral)capsid.

Accepted Answer

The answer of   
The virions shown in Figure...

Question 8

Enveloped animal viruses enter cells in a process similar to the bacteriophage infection process.

Accepted Answer

A) True 
 B)False

Question 9

Bacteriophage release is a gradual process in which small numbers are released at a time.

Accepted Answer

A) True 
 B)False

Question 10

Budding release of virus may result in long lasting or persistent infection.

Accepted Answer

A) True 
 B)False

Question 11

Tumors invade other organs and tissues in a process called

Accepted Answer

A)  neoplasia. 
B)  a plaque assay. 
C)  latency. 
D)  budding. 
E)  metastasis. 
A)  neoplasia. 
B)  a plaque assay. 
C)  latency. 
D)  budding. 
E)  metastasis.

Question 12

Which of the following taxa are used for classification of viruses as well as organisms?

Accepted Answer

A)  Kingdom 
B)  Class 
C)  Division 
D)  Family 
E)  Division, Class, and Family are used in both taxonomic schemes. 
A)  Kingdom 
B)  Class 
C)  Division 
D)  Family 
E)  Division, Class, and Family are used in both taxonomic schemes.

Question 13

During ________,viruses remain dormant in animal cells.

Accepted Answer

A)  budding 
B)  latency 
C)  lytic replication 
D)  persistent infection 
E)  oncogenesis 
A)  budding 
B)  latency 
C)  lytic replication 
D)  persistent infection 
E)  oncogenesis

Question 14

Describe the mechanism by which PrP is infectious.

Accepted Answer

The clue to why PrP acts as an infectiou

Question 15

How is the HIV provirus different from a lambda-phage prophage?

Accepted Answer

A)  the HIV provirus is integrated permanently into the host cell's DNA. 
B)  all subsequent generations of HIV-infected cells carry the provirus. 
C)  all the offspring of a cell infected with a prophage will contain the virus. 
D)  the HIV provirus is inactive inside the host cell. 
E)  lambda phage-infected cells produce virus slowly over time. 
A)  the HIV provirus is integrated permanently into the host cell's DNA. 
B)  all subsequent generations of HIV-infected cells carry the provirus. 
C)  all the offspring of a cell infected with a prophage will contain the virus. 
D)  the HIV provirus is inactive inside the host cell. 
E)  lambda phage-infected cells produce virus slowly over time.

Question 16

Which of the following statements regarding virus taxonomy is true?

Accepted Answer

A)  Viruses are classified on the basis of the taxonomy of their host organisms. 
B)  Virus classes are well established. 
C)  Some virus family names are derived from the name of an important member of the family. 
D)  The species epithet is a latin descriptor of the virion structure. 
E)  Virus classes are based on the domain of the host organism. 
A)  Viruses are classified on the basis of the taxonomy of their host organisms. 
B)  Virus classes are well established. 
C)  Some virus family names are derived from the name of an important member of the family. 
D)  The species epithet is a latin descriptor of the virion structure. 
E)  Virus classes are based on the domain of the host organism.

Question 17

Reverse transcriptase is associated with which of the following?

Accepted Answer

A)  dsDNA viruses 
B)  +ssRNA viruses 
C)  -ssRNA viruses 
D)  retroviruses 
E)  dsRNA viruses 
A)  dsDNA viruses 
B)  +ssRNA viruses 
C)  -ssRNA viruses 
D)  retroviruses 
E)  dsRNA viruses

Question 18

Most viruses cannot be seen by light microscopy.

Accepted Answer

A) True 
 B)False

Question 19

The process known as ________ is a mechanism of release for enveloped viruses.

Accepted Answer

A)  lytic replication 
B)  persistent infection 
C)  metastasis 
D)  latency 
E)  budding 
A)  lytic replication 
B)  persistent infection 
C)  metastasis 
D)  latency 
E)  budding

Question 20

Which of the following is a characteristic by which viruses are classified?

Accepted Answer

A)  type of nucleic acid 
B)  type of life cycle 
C)  number of chromosomes 
D)  type of host 
E)  size 
A)  type of nucleic acid 
B)  type of life cycle 
C)  number of chromosomes 
D)  type of host 
E)  size

Exam 13: Characterizing and Classifying Viruses, Viroids, and Prions

Fertilized chicken eggs are used to culture some vaccine strains.

Viroids infect

Uncontrolled cell division in animals is known as (metastasis/neoplasia/cancer).

Viral capsids are composed of subunits called (capsomeres/nucleocapsids/prions).

A ________ is a mass of neoplastic cells.

Which of the following infectious particles do not have protein in their structure?

The virions shown in Figure have a (complex/helical/polyhedral)capsid.

Enveloped animal viruses enter cells in a process similar to the bacteriophage infection process.

Bacteriophage release is a gradual process in which small numbers are released at a time.

Budding release of virus may result in long lasting or persistent infection.

Tumors invade other organs and tissues in a process called

Which of the following taxa are used for classification of viruses as well as organisms?

During ________,viruses remain dormant in animal cells.

Describe the mechanism by which PrP is infectious.

How is the HIV provirus different from a lambda-phage prophage?

Which of the following statements regarding virus taxonomy is true?

Reverse transcriptase is associated with which of the following?

Most viruses cannot be seen by light microscopy.

The process known as ________ is a mechanism of release for enveloped viruses.

Which of the following is a characteristic by which viruses are classified?

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

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