Question 1

The famous white cliffs of Dover were formed by shells of a marine organism killed by coccolithoviruses.

Accepted Answer

A) True 
 B)False

Question 2

The enzymes encoded by the phycodnavirus PBCV-1 are notable because they are the largest known enzymes of their type found in a viral genome.

Accepted Answer

A) True 
 B)False

Question 3

All of the following virus families are members of the superfamily of Nucleo-Cytoplasmic Large DNA viruses EXCEPT...

Accepted Answer

A)  Phycodnaviridae 
B)  Adenoviridae 
C)  Mimiviridae 
D)  Poxviridae 
E)  Asfarviridae 
A)  Phycodnaviridae 
B)  Adenoviridae 
C)  Mimiviridae 
D)  Poxviridae 
E)  Asfarviridae

Question 4

Which of the following may explain why mimiviruses encode a high number of DNA repair enzymes?

Accepted Answer

A)  Their host produces a large number of nucleases. 
B)  The method used to replicate the viral genome introduces many mutations. 
C)  During long periods between infections, they are exposed to UV light. 
D)  During entry, the genome would be exposed to oxidizing conditions. 
E)  Both "c" and "d" are correct. 
A)  Their host produces a large number of nucleases. 
B)  The method used to replicate the viral genome introduces many mutations. 
C)  During long periods between infections, they are exposed to UV light. 
D)  During entry, the genome would be exposed to oxidizing conditions. 
E)  Both "c" and "d" are correct.

Question 5

All of the following characteristics are common to the virions of all of the phycodnaviruses EXCEPT:

Accepted Answer

A)  They have a core which contains the double-stranded DNA genome. 
B)  The DNA containing core is surrounded a lipid bilayer. 
C)  The internal lipid membrane is surrounded by an icosahedral capsid. 
D)  The presence of an outer membrane acquired by budding from the host cell. 
E)  All of the above are found in the virions of all phycodnaviruses. 
A)  They have a core which contains the double-stranded DNA genome. 
B)  The DNA containing core is surrounded a lipid bilayer. 
C)  The internal lipid membrane is surrounded by an icosahedral capsid. 
D)  The presence of an outer membrane acquired by budding from the host cell. 
E)  All of the above are found in the virions of all phycodnaviruses.

Question 6

Describe how the viruses that infect the marine coccolithophore Emiliania huxleyi can change local weather patterns.

Accepted Answer

When the coccolithoviruses infect the E.

Exam 27: Viruses of Algae and Mimivirus

The famous white cliffs of Dover were formed by shells of a marine organism killed by coccolithoviruses.

The enzymes encoded by the phycodnavirus PBCV-1 are notable because they are the largest known enzymes of their type found in a viral genome.

All of the following virus families are members of the superfamily of Nucleo-Cytoplasmic Large DNA viruses EXCEPT...

Which of the following may explain why mimiviruses encode a high number of DNA repair enzymes?

All of the following characteristics are common to the virions of all of the phycodnaviruses EXCEPT:

Describe how the viruses that infect the marine coccolithophore Emiliania huxleyi can change local weather patterns.

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

Cucumber Mosaic Virus

Picornaviruses

Flaviviruses

Togaviruses

Coronaviruses

Paramyxo-Viruses and Rhabdoviruses

Filovirouses

Bunyaviruses

Influenza Viruses

Reoviruses

Parvoviruses

Polyomaviruses

Papillomaviruses

Adenoviruses

Herpesviruses

Baculoviruses

Poxviruses

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