Question 1

Which of the following describes a major difference between the positive-strand RNA viruses and negative-strand RNA viruses?

Accepted Answer

A) Only positive-strand viruses must package their polymerase in their virion. 
B) Only negative-strand viruses must package their polymerase in their virion. 
C) Only positive-strand viruses must encode a polymerase in their genome. 
D) Only negative-strand viruses must encode a polymerase in their genome. 
E) Both kinds of RNA viruses both encode and package a polymerase. 
A) Only positive-strand viruses must package their polymerase in their virion. 
B) Only negative-strand viruses must package their polymerase in their virion. 
C) Only positive-strand viruses must encode a polymerase in their genome. 
D) Only negative-strand viruses must encode a polymerase in their genome. 
E) Both kinds of RNA viruses both encode and package a polymerase.

Question 2

Which of the following describes the process of RNA editing as used by the paramyxoviruses?

Accepted Answer

A) Removal of an introns and splicing together of the exons. 
B) Splicing together of two separate RNAs. 
C) Removal of one or two nucleotides from the 5' end of the mRNA. 
D) Addition of one or two non-template nucleotides to the mRNA. 
E) Removal of one or two nucleotides from the middle of the mRNA. 
A) Removal of an introns and splicing together of the exons. 
B) Splicing together of two separate RNAs. 
C) Removal of one or two nucleotides from the 5' end of the mRNA. 
D) Addition of one or two non-template nucleotides to the mRNA. 
E) Removal of one or two nucleotides from the middle of the mRNA.

Question 3

Which of the following statements about rabies is FALSE?

Accepted Answer

A) The virion has a bullet shape. 
B) It is usually transmitted through the bites of bats or domestic dogs. 
C) The vaccine can be administered after infection has occurred. 
D) Infection with the virus has a 50% mortality rate in untreated individuals. 
E) Infection of humans causes an encephalitis. 
A) The virion has a bullet shape. 
B) It is usually transmitted through the bites of bats or domestic dogs. 
C) The vaccine can be administered after infection has occurred. 
D) Infection with the virus has a 50% mortality rate in untreated individuals. 
E) Infection of humans causes an encephalitis.

Question 4

In the paramyxoviruses,cleavage of the F0 protein into two subunits F1 and F2 is important for which of the following?

Accepted Answer

A) Formation of the envelope. 
B) Glycosylation of the protein. 
C) Creation of the transmembrane domain. 
D) Exposing the fusion peptide. 
A) Formation of the envelope. 
B) Glycosylation of the protein. 
C) Creation of the transmembrane domain. 
D) Exposing the fusion peptide.

Question 5

Which of the following statements about the leader sequence at the 3' end of the paramyxovirus genome,is FALSE?

Accepted Answer

A) It is translated into a short polypeptide. 
B) It is transcribed into a short positive-strand RNA. 
C) The transcript produced from the leader contains a packaging signal for the positive-strand antigenome. 
D) It contains the binding site for the RNA polymerase to begin transcription. 
E) The transcript produced from the leader lacks a 5' cap. 
A) It is translated into a short polypeptide. 
B) It is transcribed into a short positive-strand RNA. 
C) The transcript produced from the leader contains a packaging signal for the positive-strand antigenome. 
D) It contains the binding site for the RNA polymerase to begin transcription. 
E) The transcript produced from the leader lacks a 5' cap.

Question 6

Which of the following statements about paramyxoviruses is FALSE?

Accepted Answer

A) The N protein can bind to a variable number of nucleotides in the genome. 
B) The RNA-dependent RNA polymerase is a virion protein. 
C) Every protein coded for in the genome is packaged into the virion 
D) The N protein protects the genome from ribonuclease digestion. 
E) Naked genome-length RNA is never found within the cell. 
A) The N protein can bind to a variable number of nucleotides in the genome. 
B) The RNA-dependent RNA polymerase is a virion protein. 
C) Every protein coded for in the genome is packaged into the virion 
D) The N protein protects the genome from ribonuclease digestion. 
E) Naked genome-length RNA is never found within the cell.

Exam 15: Paramyxoviruses and Rhabdoviruses

Which of the following describes a major difference between the positive-strand RNA viruses and negative-strand RNA viruses?

Which of the following describes the process of RNA editing as used by the paramyxoviruses?

Which of the following statements about rabies is FALSE?

In the paramyxoviruses,cleavage of the F0 protein into two subunits F1 and F2 is important for which of the following?

Which of the following statements about the leader sequence at the 3' end of the paramyxovirus genome,is FALSE?

Which of the following statements about paramyxoviruses is FALSE?

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

Cucumber Mosaic Virus

Picornaviruses

Flaviviruses

Togaviruses

Coronaviruses

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