Block 1 Flashcards
(40 cards)
Who is the father of microbiology? o Jenner o Pasteur o Virchow o Koch
Pasteur
Who created the smallpox vaccine? o Jenner o Pasteur o Virchow o Koch
Jenner
All of Koch’s postulates apply to viruses. True or False?
False
What is a bacteriophage? o A bacteria that parasitizes a virus o A phagocyte that engulfs bacteria o A virus that parasitizes a bacterium o None of the above
A virus that parasitizes a bacterium
What are the largest of the viruses? o Herpesviruses o Poxviruses o Influenza viruses o Foot and Mouth Disease viruses o Retroviruses
Poxviruses
When a disease exists permanently in a particular region or population it’s called a _____.
o Endemic
o Epidemic
o Pandemic
Endemic
When there’s a disease outbreak that attacks many individuals at the same time and may spread through several communities it’s called a ______.
o Endemic
o Epidemic
o Pandemic
Epidemic
When a disease spreads throughout the world it’s called a ______.
o Endemic
o Epidemic
o Pandemic
Pandemic
A virus can only contain either DNA or RNA. True or False?
True
A virus contains a capsule. True or False?
False
All DNA viruses replicate in the nucleus. True or False?
False
The dose of a virus that causes infection in 50% of animals is called what?
ID50
The dose of a virus required to cause death in 50% of animals is called what?
LD50
Regarding the lysogenic and lytic cycles, which causes cell death?
Lytic Cycle
The ability to cause disease is referred to as what? o Virulence o Pathogenicity o All of the above o None of the above
Pathogenicity
The accumulation of multinucleated giant cells is called what? o CPE o Coagulation o Syncytia o None of the above
Syncytia
Which interferon do virus infected leukocytes produce? o INF-α o INF-β o INF-δ o INF-γ
INF-α
Antigen stimulated T cells are a major source of which interferon? o INF-α o INF-β o INF-δ o INF-γ
INF-γ
Which interferon do virus infected fibroblasts produce? o INF-α o INF-β o INF-δ o INF-γ
INF-β
NK cells produce which interferon? o INF-α o INF-β o INF-δ o INF-γ
INF-γ
A gene that has the potential to convert a normal cell into a cancerous/transformed cell is referred to as what? o Oncogene o Viral oncogene o Cellular oncogene o Proto-oncogene
Oncogene
Which of the following is an oncogenic DNA virus? o Herpesvirus o Papillomavirus o Adenovirus o Polyomavirus o Hepadnavirus o All of the above
All of the above
A virus that doesn’t have an envelope is referred to as “naked”. True or False?
True
What is the most abundant immunoglobulin in the body of a dog o IgA o IgD o IgE o IgG o IgM
IgG