Question 1

The 5'-terminal 200nts on the cucumber mosaic virus genome function as a promoter for the synthesis of the minus-strand RNA.

Accepted Answer

A) True 
 B)False

Question 2

In cucumber mosaic virus,productive infection requires simultaneous entry of all three major RNA segments,each packaged into a separate virion.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following enzymes can transfer an amino acid to the 3' end of the genome of cucumber mosaic virus?

Accepted Answer

A) Elongation factor Tu 
B) Aminoacyl tRNA synthetase 
C) Nucleotidyltransferase. 
D) Ribosomal protein S1. 
E) Methyltransferase 
A) Elongation factor Tu 
B) Aminoacyl tRNA synthetase 
C) Nucleotidyltransferase. 
D) Ribosomal protein S1. 
E) Methyltransferase

Question 4

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

Question 5

All of the following describe a method of introducing Cucumber Mosaic Virus into a healthy plant EXCEPT….

Accepted Answer

A) Grafting an infected branch 
B) Insect feeding 
C) Watering with a virus containing solution 
D) Mechanical inoculation 
E) Infection of seeds 
A) Grafting an infected branch 
B) Insect feeding 
C) Watering with a virus containing solution 
D) Mechanical inoculation 
E) Infection of seeds

Question 6

The coat protein of cucumber mosaic virus contains a negatively charged domain localized on the internal side of the capsid.Which of the following describes the purpose of this domain?

Accepted Answer

A) It maintains the structure of the capsid. 
B) It associates with the positive charge of the viral RNA. 
C) It is involved in release of the viral genome into the host cell. 
D) It interacts with the host cell receptor. 
E) It is involved in movement of the capsid across the plant cell wall. 
A) It maintains the structure of the capsid. 
B) It associates with the positive charge of the viral RNA. 
C) It is involved in release of the viral genome into the host cell. 
D) It interacts with the host cell receptor. 
E) It is involved in movement of the capsid across the plant cell wall.

Exam 10: Cucumber Mosaic Virus

The 5'-terminal 200nts on the cucumber mosaic virus genome function as a promoter for the synthesis of the minus-strand RNA.

In cucumber mosaic virus,productive infection requires simultaneous entry of all three major RNA segments,each packaged into a separate virion.

Which of the following enzymes can transfer an amino acid to the 3' end of the genome of cucumber mosaic 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?

All of the following describe a method of introducing Cucumber Mosaic Virus into a healthy plant EXCEPT….

The coat protein of cucumber mosaic virus contains a negatively charged domain localized on the internal side of the capsid.Which of the following describes the purpose of this domain?

Introduction to Virology 2

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

Paramyxoviruses and Rhabdoviruses

Filovirouses

Bunyaviruses

Influenza Viruses

Reoviruses

Parvoviruses

Polyomaviruses

Papillomaviruses

Adenoviruses

Herpesviruses

Baculoviruses

Poxviruses

Viruses of Algae and Mimivirus

Retroviruses

Human Immunodeficiency Virus

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