Question 1

The methyltransferase domain of the polymerase subunit 1a in the cucumber mosaic virus is responsible for doing with of the following?

Accepted Answer

A)  Separating strands of the viral RNA during replication. 
B)  Replicating the viral genome. 
C)  Adding the 5' cap to the viral RNA genome segments. 
D)  Movement of the viral genome through the plasmodesmata. 
E)  Inhibiting host ribonucleases. 
A)  Separating strands of the viral RNA during replication. 
B)  Replicating the viral genome. 
C)  Adding the 5' cap to the viral RNA genome segments. 
D)  Movement of the viral genome through the plasmodesmata. 
E)  Inhibiting host ribonucleases.

Question 2

Plants infected with cucumber mosaic virus are more tolerant to drought and cold than uninfected plants.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following characteristics of the cucumber mosaic virus influences the aphid species that can transmit the virus?

Accepted Answer

A)  Amino acid sequence of the coat protein. 
B)  The replication efficiency of the RNA-dependent RNA polymerase. 
C)  The specificity of binding to the host cell receptor. 
D)  The sequence of the 3' end of the viral genomic RNA. 
E)  The sequence of the IRES at the 5' end of the genomic RNA. 
A)  Amino acid sequence of the coat protein. 
B)  The replication efficiency of the RNA-dependent RNA polymerase. 
C)  The specificity of binding to the host cell receptor. 
D)  The sequence of the 3' end of the viral genomic RNA. 
E)  The sequence of the IRES at the 5' end of the genomic RNA.

Question 4

Which of the following statements about satellite RNAs found in cucumber mosaic virus infections is FALSE?

Accepted Answer

A)  They require a cucumber mosaic virus for replication. 
B)  They are packaged into cucumber mosaic virus capsids. 
C)  They are small linear RNA molecules. 
D)  They encode several functional proteins. 
E)  They can increase the symptoms produced by cucumber mosaic virus. 
A)  They require a cucumber mosaic virus for replication. 
B)  They are packaged into cucumber mosaic virus capsids. 
C)  They are small linear RNA molecules. 
D)  They encode several functional proteins. 
E)  They can increase the symptoms produced by cucumber mosaic virus.

Question 5

Describe how satellite RNAs of the cucumber mosaic virus are act as parasites of the virus.

Accepted Answer

Satellite RNAs are small linear RNAs tha

Question 6

Plant viruses, like cucumber mosaic virus, often package separate RNA genome segments into separate virions.What are the evolutionary advantages and disadvantages of this strategy? What ensures that the plants are infected with all of the necessary genome segments to begin an infection?

Accepted Answer

The evolutionary advantage of packaging

Exam 10: Cucumber Mosaic Virus

The methyltransferase domain of the polymerase subunit 1a in the cucumber mosaic virus is responsible for doing with of the following?

Plants infected with cucumber mosaic virus are more tolerant to drought and cold than uninfected plants.

Which of the following characteristics of the cucumber mosaic virus influences the aphid species that can transmit the virus?

Which of the following statements about satellite RNAs found in cucumber mosaic virus infections is FALSE?

Describe how satellite RNAs of the cucumber mosaic virus are act as parasites of the virus.

Plant viruses, like cucumber mosaic virus, often package separate RNA genome segments into separate virions.What are the evolutionary advantages and disadvantages of this strategy? What ensures that the plants are infected with all of the necessary genome segments to begin an infection?

Introduction to Virology

Virus Structure and Assembly

Virus Classification: The World of Viruses

Virus Entry

Single-Stranded RNA Bacteriophages

Microviruses

Bacteriophage

Bacteriophage Lambda

Viruses of Archaea

Picornaviruses

Flaviviruses

Togaviruses

Coronaviruses

Paramyxo-Viruses and Rhabdoviruses

Filovirouses

Bunyaviruses

Influenza Viruses

Reoviruses

Parvoviruses

Polyomaviruses

Papillomaviruses

Adenoviruses

Herpesviruses

Baculoviruses

Poxviruses

Viruses of Algae and Mimivirus

Retroviruses

Human Immunodeficiency

Hepadnaviruses

Viroids and Hepatitis Delta Virus

Prions

Intrinsic Cellular Defenses Against Virus Infection

Innate and Adaptive Immune Responses to Virus Infection

Antiviral Vaccines

Antiviral Chemotherapy

Eukaryotic Virus Vectors

Filters