Question 1

In general, most DNA viruses multiply in the host cell's _____, while most RNA viruses multiply in the host cell's _____.

Accepted Answer

A) nucleus, cytoplasm 
B) cytoplasm, cell membrane 
C) cell membrane, cytoplasm 
D) cytoplasm, nucleus 
E) nucleus, endoplasmic reticulum 
A) nucleus, cytoplasm 
B) cytoplasm, cell membrane 
C) cell membrane, cytoplasm 
D) cytoplasm, nucleus 
E) nucleus, endoplasmic reticulum A

Question 2

Which of the following is correct about viruses?

Accepted Answer

A) cannot be seen with a light microscope 
B) are procaryotic 
C) contain 70S ribosomes 
D) undergo binary fission 
E) can be grown on nutrient agar 
A) cannot be seen with a light microscope 
B) are procaryotic 
C) contain 70S ribosomes 
D) undergo binary fission 
E) can be grown on nutrient agar A

Question 3

Prophages can be activated into viral replication and enter the lytic cycle.

Accepted Answer

A) True 
 B)False  True

Question 4

The correct sequence of events in viral multiplication is

Accepted Answer

A) penetration, replication, maturation, adsorption, assembly, release. 
B) replication, penetration, maturation, assembly, absorption, release. 
C) adsorption, penetration, replication, maturation, assembly, release. 
D) assembly, maturation, replication, release, penetration, adsorption. 
E) adsorption, release, maturation, replication, assembly, penetration. 
A) penetration, replication, maturation, adsorption, assembly, release. 
B) replication, penetration, maturation, assembly, absorption, release. 
C) adsorption, penetration, replication, maturation, assembly, release. 
D) assembly, maturation, replication, release, penetration, adsorption. 
E) adsorption, release, maturation, replication, assembly, penetration.

Question 5

Which of the following will not support viral cultivation?

Accepted Answer

A) live lab animals 
B) embryonated bird eggs 
C) primary cell cultures 
D) continuous cell cultures 
E) blood agar 
A) live lab animals 
B) embryonated bird eggs 
C) primary cell cultures 
D) continuous cell cultures 
E) blood agar

Question 6

Helical and icosahedral are terms used to describe the shapes of a virus

Accepted Answer

A) spike. 
B) capsomere. 
C) envelope. 
D) capsid. 
E) core. 
A) spike. 
B) capsomere. 
C) envelope. 
D) capsid. 
E) core.

Question 7

No cases of variant Creutzfeldt-Jakob syndrome linked to eating infected cows have occurred in the United States.

Accepted Answer

A) True 
 B)False

Question 8

Viruses with _____ sense RNA contain the correct message for translation, while viruses with _____ sense RNA must first be converted into a correct message.

Accepted Answer

The answer of Viruses with _____ sense RNA contain the...

Question 9

All of the following are characteristics of viruses except

Accepted Answer

A) they can be crystallized. 
B) they often have a geometric capsid. 
C) they have a viscous fluid inside their capsids. 
D) they can cause fatal diseases. 
E) they can cause mild diseases. 
A) they can be crystallized. 
B) they often have a geometric capsid. 
C) they have a viscous fluid inside their capsids. 
D) they can cause fatal diseases. 
E) they can cause mild diseases.

Question 10

Two noncellular agents, smaller than viruses, are the infectious proteins called _____, and the infectious RNA strands called _____.

Accepted Answer

The answer of Two noncellular agents, smaller than viruses, are...

Question 11

Viruses belong to which of the following Kingdoms?

Accepted Answer

A) Protists 
B) Fungi 
C) Archaea 
D) Bacteria 
E) None of the choices are correct. 
A) Protists 
B) Fungi 
C) Archaea 
D) Bacteria 
E) None of the choices are correct.

Question 12

Which of the following is not associated with every virus?

Accepted Answer

A) envelope 
B) capsomers 
C) capsid 
D) nucleic acid 
E) genome 
A) envelope 
B) capsomers 
C) capsid 
D) nucleic acid 
E) genome

Question 13

A _____ is the protein shell around the nucleic acid core of a virus.

Accepted Answer

The answer of A _____ is the protein shell around...

Question 14

Which of the following is a type of cytopathic effect?

Accepted Answer

A) inclusions in the nucleus 
B) multinucleated giant cells 
C) inclusions in the cytoplasm 
D) cells round up 
E) All of the choices are correct. 
A) inclusions in the nucleus 
B) multinucleated giant cells 
C) inclusions in the cytoplasm 
D) cells round up 
E) All of the choices are correct.

Question 15

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a _____ cell culture.

Accepted Answer

The answer of Freshly isolated animal tissue that is placed...

Question 16

Compare and contrast the steps of viral multiplication cycles in bacteriophages and animal viruses.

Accepted Answer

The steps of viral multiplication cycles

Question 17

When a virus enters a lysogenic phase, it means

Accepted Answer

A) the virus is integrated into the DNA of the host cell and is latent. 
B) the virus is bursting through the host cell membrane. 
C) the virus is starting biosynthesis of its nucleic acid. 
D) the virus will remain in circulation and not continue infecting its host. 
E) the number of viruses in the host is decreasing as the immune system becomes effective. 
A) the virus is integrated into the DNA of the host cell and is latent. 
B) the virus is bursting through the host cell membrane. 
C) the virus is starting biosynthesis of its nucleic acid. 
D) the virus will remain in circulation and not continue infecting its host. 
E) the number of viruses in the host is decreasing as the immune system becomes effective.

Question 18

Viral spikes are inserted into the host cell membrane before budding or exocytosis occurs.

Accepted Answer

A) True 
 B)False

Question 19

Explain what is meant by host range, what governs host range, and what is meant by tissue tropism.

Accepted Answer

Host range refers to the range of differ

Question 20

Infectious protein particles are called

Accepted Answer

A) viroids. 
B) phages. 
C) prions. 
D) oncogenic viruses. 
E) spikes. 
A) viroids. 
B) phages. 
C) prions. 
D) oncogenic viruses. 
E) spikes.

Exam 6: An Introduction to Viruses

In general, most DNA viruses multiply in the host cell's _____, while most RNA viruses multiply in the host cell's _____.

Which of the following is correct about viruses?

Prophages can be activated into viral replication and enter the lytic cycle.

The correct sequence of events in viral multiplication is

Which of the following will not support viral cultivation?

Helical and icosahedral are terms used to describe the shapes of a virus

No cases of variant Creutzfeldt-Jakob syndrome linked to eating infected cows have occurred in the United States.

Viruses with _____ sense RNA contain the correct message for translation, while viruses with _____ sense RNA must first be converted into a correct message.

All of the following are characteristics of viruses except

Two noncellular agents, smaller than viruses, are the infectious proteins called _____, and the infectious RNA strands called _____.

Viruses belong to which of the following Kingdoms?

Which of the following is not associated with every virus?

A _____ is the protein shell around the nucleic acid core of a virus.

Which of the following is a type of cytopathic effect?

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a _____ cell culture.

Compare and contrast the steps of viral multiplication cycles in bacteriophages and animal viruses.

When a virus enters a lysogenic phase, it means

Viral spikes are inserted into the host cell membrane before budding or exocytosis occurs.

Explain what is meant by host range, what governs host range, and what is meant by tissue tropism.

Infectious protein particles are called

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

Filters

In general, most DNA viruses multiply in the host cell's _, while most RNA viruses multiply in the host cell's _.

Viruses with _ sense RNA contain the correct message for translation, while viruses with _ sense RNA must first be converted into a correct message.

Two noncellular agents, smaller than viruses, are the infectious proteins called _, and the infectious RNA strands called _.