Question 1

The genome of __________ ssRNA viruses can serve directly as mRNA.

Accepted Answer

A)  positive (+) sense 
B)  negative (-) sense 
C)  all 
D)  double-stranded 
E)  prion 
A)  positive (+) sense 
B)  negative (-) sense 
C)  all 
D)  double-stranded 
E)  prion

Question 2

__________ can be counted as representing individual infectious virions from a phage suspension.

Accepted Answer

A)  Plaques 
B)  Viruses 
C)  Genomes 
D)  Proteomes 
E)  Burst size 
A)  Plaques 
B)  Viruses 
C)  Genomes 
D)  Proteomes 
E)  Burst size

Question 3

Genes for the capsid proteins are found in the:

Accepted Answer

A)  plasmid 
B)  bacterial chromosome 
C)  envelope 
D)  ribosome 
E)  viral genome 
A)  plasmid 
B)  bacterial chromosome 
C)  envelope 
D)  ribosome 
E)  viral genome

Question 4

Which of the following is NOT true of the pararetroviruses?

Accepted Answer

A)  They have an RNA genome. 
B)  They do not make a DNA intermediate. 
C)  Some have a viral reverse transcriptase. 
D)  Some use a host reverse transcriptase. 
E)  They consist of human and plant pathogens. 
A)  They have an RNA genome. 
B)  They do not make a DNA intermediate. 
C)  Some have a viral reverse transcriptase. 
D)  Some use a host reverse transcriptase. 
E)  They consist of human and plant pathogens.

Question 5

After the genome is inserted, the phage capsid remains outside, attached to the cell surface, and is referred to as a/an __________.

Accepted Answer

A)  envelope 
B)  neck 
C)  tail fibers 
D)  ghost 
E)  temperate 
A)  envelope 
B)  neck 
C)  tail fibers 
D)  ghost 
E)  temperate

Question 6

__________ phages have been used to nucleate the growth of crystalline "nanowires" for electronic devices.

Accepted Answer

A)  Icosahedral 
B)  Complex 
C)  Asymmetrical 
D)  Filamentous 
E)  Viroid 
A)  Icosahedral 
B)  Complex 
C)  Asymmetrical 
D)  Filamentous 
E)  Viroid

Question 7

In a filamentous virus, the pattern of capsid monomers forms a __________ tube around the genome.

Accepted Answer

A)  icosahedral 
B)  filamentous 
C)  asymmetrical 
D)  complex 
E)  helical 
A)  icosahedral 
B)  filamentous 
C)  asymmetrical 
D)  complex 
E)  helical

Question 8

What determines whether a temperate phage will go through the lysogenic cycle or switch to the lytic cycle?

Accepted Answer

Proteins bind DNA to repress viral repli

Question 9

Discuss the role that marine viruses play in carbon balance.

Accepted Answer

The carbon cycle in a marine environment

Question 10

The period of time when virions are virtually undetectable inside the infected cell is the:

Accepted Answer

A)  eclipse period 
B)  latent period 
C)  rise period 
D)  burst period 
E)  lag period 
A)  eclipse period 
B)  latent period 
C)  rise period 
D)  burst period 
E)  lag period

The genome of __________ ssRNA viruses can serve directly as mRNA.

__________ can be counted as representing individual infectious virions from a phage suspension.

Genes for the capsid proteins are found in the:

Which of the following is NOT true of the pararetroviruses?

After the genome is inserted, the phage capsid remains outside, attached to the cell surface, and is referred to as a/an __________.

__________ phages have been used to nucleate the growth of crystalline "nanowires" for electronic devices.

In a filamentous virus, the pattern of capsid monomers forms a __________ tube around the genome.

What determines whether a temperate phage will go through the lysogenic cycle or switch to the lytic cycle?

Discuss the role that marine viruses play in carbon balance.

The period of time when virions are virtually undetectable inside the infected cell is the:

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Molecular Techniques and Biotechnology

Energetics and Catabolism

Respiration, Lithotrophy, and Photolysis

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes and the Global Environment

Human Microbiota and Nonspecific Host Defenses

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Chemotherapy

Clinical Microbiology and Epidemiology

Filters

Exam 6: Virus Structure and Function

The genome of __________ ssRNA viruses can serve directly as mRNA.

__________ can be counted as representing individual infectious virions from a phage suspension.

Genes for the capsid proteins are found in the:

Which of the following is NOT true of the pararetroviruses?

After the genome is inserted, the phage capsid remains outside, attached to the cell surface, and is referred to as a/an __________.

__________ phages have been used to nucleate the growth of crystalline "nanowires" for electronic devices.

In a filamentous virus, the pattern of capsid monomers forms a __________ tube around the genome.

What determines whether a temperate phage will go through the lysogenic cycle or switch to the lytic cycle?

Discuss the role that marine viruses play in carbon balance.

The period of time when virions are virtually undetectable inside the infected cell is the:

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Molecular Techniques and Biotechnology

Energetics and Catabolism

Respiration, Lithotrophy, and Photolysis

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes and the Global Environment

Human Microbiota and Nonspecific Host Defenses

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Chemotherapy

Clinical Microbiology and Epidemiology

Filters