Question 1

A Type I membrane protein has which of the following structures?

Accepted Answer

A) Both the C-terminus and the N-terminus face the inside of the virion. 
B) It passes through the viral envelope multiple times. 
C) The N-terminus faces outside the virion and the C-terminus faces inside the virion. 
D) The N-terminus faces inside the virion and the C-terminus faces outside the virion. 
E) The protein lacks a transmembrane domain and is secreted from the infected cell. 
A) Both the C-terminus and the N-terminus face the inside of the virion. 
B) It passes through the viral envelope multiple times. 
C) The N-terminus faces outside the virion and the C-terminus faces inside the virion. 
D) The N-terminus faces inside the virion and the C-terminus faces outside the virion. 
E) The protein lacks a transmembrane domain and is secreted from the infected cell.

Question 2

The lipid membrane that surrounds the nucleocapsid of some virus particles is called the:

Accepted Answer

A) matrix 
B) tegument 
C) capsid 
D) envelope 
E) glycoprotein 
A) matrix 
B) tegument 
C) capsid 
D) envelope 
E) glycoprotein

Question 3

What does the term "quasi-equivalent" mean with respect to the proteins in an icosahedral capsid?

Accepted Answer

A) If the identical protein is used,it has both 5-fold and 6-fold interactions with the other proteins in the capsid. 
B) There are different proteins in the capsid with similiar shapes. 
C) They all use the "jelly-roll" protein structure. 
D) There can be more than one type of glycoprotein in the envelope. 
E) All of the proteins interact in a 5-fold arrangement. 
A) If the identical protein is used,it has both 5-fold and 6-fold interactions with the other proteins in the capsid. 
B) There are different proteins in the capsid with similiar shapes. 
C) They all use the "jelly-roll" protein structure. 
D) There can be more than one type of glycoprotein in the envelope. 
E) All of the proteins interact in a 5-fold arrangement.

Question 4

Virus particles can be visualized with which of the following?

Accepted Answer

A) negative staining of virions with electron microscopy 
B) negative staining of virions with x-ray diffraction 
C) negative staining of thin sections of infected cells with electron microscopy 
D) positive staining in cryoelectron microscopy 
E) positive staining of infected cells with x-ray diffraction 
A) negative staining of virions with electron microscopy 
B) negative staining of virions with x-ray diffraction 
C) negative staining of thin sections of infected cells with electron microscopy 
D) positive staining in cryoelectron microscopy 
E) positive staining of infected cells with x-ray diffraction

Exam 2: Virus Structure and Assembly

A Type I membrane protein has which of the following structures?

The lipid membrane that surrounds the nucleocapsid of some virus particles is called the:

What does the term "quasi-equivalent" mean with respect to the proteins in an icosahedral capsid?

Virus particles can be visualized with which of the following?

Introduction to Virology 2

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

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