MICROIMM 2500: LATEST
VIROLOGY EXAM
Measles - ANSWERS-virus that is transmitted in aerosols through
coughs/sneezes
- mostly eradicated in Canada due to vaccination
- still present in SA and Africa
Endogenous Viral Sequences - ANSWERS-viral genetic sequences from
infections that occurred that integrate into our own genetic material
- no longer infectious
Intrinsic Defenses - ANSWERS-physical barriers like skin/sweat that
keep viruses from entering our body
Polydnavirus - ANSWERS-gene from a virus in wasps that allows eggs
to survive in caterpillar larvae by suppressing the caterpillar's innate
immune response.
Curvularia Thermal Tolerance Virus (CThTV) - ANSWERS-virus that
infects fungus to allow them to grow at temperatures over 50 C
- helps infected plants grow at high temps
END OF
PAGE
1
, MICROIMM 2500: LATEST
VIROLOGY EXAM
Tulip Breaking Virus (TBV) - ANSWERS-potyvirus that interferes with
the synthesis of flower pigmentation
- created a "broken" pigmented appearance in tulips
4 Requirements for Viral Survival - ANSWERS-1. package their
genome inside a particle
2. use particle to transfer genome between hosts
3. genome contains information for viral infectious cycle
4. genomes ensure long term viral survival in host.
Obligate molecular parasites - ANSWERS-molecules that can only
function after they replicate in a host cell
ie viruses
Tobacco Mosaic Virus - ANSWERS-plant virus that causes plants to be
quilted and yellow
- agent on filtrate could not "grow"on its own
- growth differs from bacteria
END OF
PAGE
2
, MICROIMM 2500: LATEST
VIROLOGY EXAM
Foot and Mouth Virus - ANSWERS-first virus discovered in animals
Mimivirus - ANSWERS-large virus that lives in Amoeba and can be
seen under a light microscope
- cannot be filtered through a typical filter
Viral Infectious Cycle - ANSWERS-1. virus finds and attaches to
receptor on host cells
2. enters the cells
3. sheds its envelope to expose the genome
4. nucleic acids are then replicated by host machinery
5. assembles new virion by viral proteins
6. virion then finds a new cell to infect
Susceptible Cell - ANSWERS-cells that have a functional receptor for a
virus
Permissive Cell - ANSWERS-cells that can allow the virus to replicate
END OF
PAGE
3
VIROLOGY EXAM
Measles - ANSWERS-virus that is transmitted in aerosols through
coughs/sneezes
- mostly eradicated in Canada due to vaccination
- still present in SA and Africa
Endogenous Viral Sequences - ANSWERS-viral genetic sequences from
infections that occurred that integrate into our own genetic material
- no longer infectious
Intrinsic Defenses - ANSWERS-physical barriers like skin/sweat that
keep viruses from entering our body
Polydnavirus - ANSWERS-gene from a virus in wasps that allows eggs
to survive in caterpillar larvae by suppressing the caterpillar's innate
immune response.
Curvularia Thermal Tolerance Virus (CThTV) - ANSWERS-virus that
infects fungus to allow them to grow at temperatures over 50 C
- helps infected plants grow at high temps
END OF
PAGE
1
, MICROIMM 2500: LATEST
VIROLOGY EXAM
Tulip Breaking Virus (TBV) - ANSWERS-potyvirus that interferes with
the synthesis of flower pigmentation
- created a "broken" pigmented appearance in tulips
4 Requirements for Viral Survival - ANSWERS-1. package their
genome inside a particle
2. use particle to transfer genome between hosts
3. genome contains information for viral infectious cycle
4. genomes ensure long term viral survival in host.
Obligate molecular parasites - ANSWERS-molecules that can only
function after they replicate in a host cell
ie viruses
Tobacco Mosaic Virus - ANSWERS-plant virus that causes plants to be
quilted and yellow
- agent on filtrate could not "grow"on its own
- growth differs from bacteria
END OF
PAGE
2
, MICROIMM 2500: LATEST
VIROLOGY EXAM
Foot and Mouth Virus - ANSWERS-first virus discovered in animals
Mimivirus - ANSWERS-large virus that lives in Amoeba and can be
seen under a light microscope
- cannot be filtered through a typical filter
Viral Infectious Cycle - ANSWERS-1. virus finds and attaches to
receptor on host cells
2. enters the cells
3. sheds its envelope to expose the genome
4. nucleic acids are then replicated by host machinery
5. assembles new virion by viral proteins
6. virion then finds a new cell to infect
Susceptible Cell - ANSWERS-cells that have a functional receptor for a
virus
Permissive Cell - ANSWERS-cells that can allow the virus to replicate
END OF
PAGE
3
