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PORTAGE LEARNING - BIOD171 FINAL
EXAM 2025 BRAND NEW ACTUAL EXAM
WITH ANSWERS.
A virus that infects bacteria is called a [answer1] and contains a
[answer2] -sided polygon capsid. - correct answer -1.
Bacteriophage
2. 20
True or False. Structurally, bacteriophages are distinct from
viruses that infect plant or animal cells. - correct answer -True.
Bacteriophages are structurally distinct from viruses that infect
plant and animals cells.
Parts of a bacteriaphage - correct answer -Capsiud, Collar, Tail,
Base Plate, Tail Fibers
Describe the main differences between lytic and temperate
phages. - correct answer -Lytic bacteriophages replicate within
the host bacteria until it ruptures, whereas temporate (or
lysogenic) phages primarily exist in a non-replicative state that
does not kill the host cell.
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If a viral titer is cloudy... is it high or low - correct answer -Low. As
turbidity is a function of the number of intact bacterial cells
present in the media, the amount of virus contained within the
above tube must be low.
Which viruses spread via airborne particles? - correct answer -
Measles, mumps, rubella
True or False. A patient infected with rubella is considered
infectious one week before and after the appearance of the
trademark rash. - correct answer -True
A patient diagnosed with German measles may additionally
experience what disease? - correct answer -Conjunctivitis,
Influenza-like symptoms
What disease displays as a secondary characteristic swelling of
the testes/ovaries and pancreas? - correct answer -Mumps,
causes primary swelling in the paratoid gland, testes and ovaries
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You go to visit a friend who has chickenpox. While visiting what
are 2 things you will be sure to avoid so that you don't also
become infected? - correct answer -(1) You would want to be sure
to keep a distance especially if your friend is coughing or
sneezing as chickenpox can be transmitted through air-borne
droplets (sneezing/coughs). (2) You would also be absolutely
certain to avoid direct contact with the blisters of an infected
individual.
True or False. Someone who had chickenpox as a child is likely to
develop shingles while in college, where the median age of
college students is 18-22 years old. - correct answer -False
True or False. Unlike chickenpox, the blisters that appear with
shingles are localized and limited to small areas. - correct answer
-True. While chickenpox blisters often cover the entire body, the
blisters associated with shingles are localized and limited to small
areas.
A person who has neither previously had chickenpox nor been
administered the VZV vaccine is exposed to someone with an
active VZV (shingles) outbreak and becomes infected. Explain
why (or why not) the person will only develop shingles. - correct
answer -The infected individual will not develop shingles, but will
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develop chickenpox. Unvaccinated and unexposed individuals
must first develop chickenpox, as shingles is the reactivation of
the dormant VZV virus from the chickenpox infection.
What linear, double-stranded, enveloped DNA virus is the first
virus (as of Oct. 26, 1977) to be officially declared eradicated? -
correct answer -Smallpox
What small (~30nm) single-stranded, non-enveloped RNA virus
causes temporary or permanent paralysis by infiltrating (infecting)
motor neurons within the spinal cord, brain stem, or motor cortex?
- correct answer -Polop
By whom and where was the first polio vaccine developed? -
correct answer -Jonas Salk, University of Pittsburgh 1995
Which subtype of Influenza is the most virulent? - correct answer -
Influenza A
A drug company is trying to develop a new drug that will inhibit
viral entry of Influenza. Would the drug company target
PORTAGE LEARNING - BIOD171 FINAL
EXAM 2025 BRAND NEW ACTUAL EXAM
WITH ANSWERS.
A virus that infects bacteria is called a [answer1] and contains a
[answer2] -sided polygon capsid. - correct answer -1.
Bacteriophage
2. 20
True or False. Structurally, bacteriophages are distinct from
viruses that infect plant or animal cells. - correct answer -True.
Bacteriophages are structurally distinct from viruses that infect
plant and animals cells.
Parts of a bacteriaphage - correct answer -Capsiud, Collar, Tail,
Base Plate, Tail Fibers
Describe the main differences between lytic and temperate
phages. - correct answer -Lytic bacteriophages replicate within
the host bacteria until it ruptures, whereas temporate (or
lysogenic) phages primarily exist in a non-replicative state that
does not kill the host cell.
, Page |2
If a viral titer is cloudy... is it high or low - correct answer -Low. As
turbidity is a function of the number of intact bacterial cells
present in the media, the amount of virus contained within the
above tube must be low.
Which viruses spread via airborne particles? - correct answer -
Measles, mumps, rubella
True or False. A patient infected with rubella is considered
infectious one week before and after the appearance of the
trademark rash. - correct answer -True
A patient diagnosed with German measles may additionally
experience what disease? - correct answer -Conjunctivitis,
Influenza-like symptoms
What disease displays as a secondary characteristic swelling of
the testes/ovaries and pancreas? - correct answer -Mumps,
causes primary swelling in the paratoid gland, testes and ovaries
, Page |3
You go to visit a friend who has chickenpox. While visiting what
are 2 things you will be sure to avoid so that you don't also
become infected? - correct answer -(1) You would want to be sure
to keep a distance especially if your friend is coughing or
sneezing as chickenpox can be transmitted through air-borne
droplets (sneezing/coughs). (2) You would also be absolutely
certain to avoid direct contact with the blisters of an infected
individual.
True or False. Someone who had chickenpox as a child is likely to
develop shingles while in college, where the median age of
college students is 18-22 years old. - correct answer -False
True or False. Unlike chickenpox, the blisters that appear with
shingles are localized and limited to small areas. - correct answer
-True. While chickenpox blisters often cover the entire body, the
blisters associated with shingles are localized and limited to small
areas.
A person who has neither previously had chickenpox nor been
administered the VZV vaccine is exposed to someone with an
active VZV (shingles) outbreak and becomes infected. Explain
why (or why not) the person will only develop shingles. - correct
answer -The infected individual will not develop shingles, but will
, Page |4
develop chickenpox. Unvaccinated and unexposed individuals
must first develop chickenpox, as shingles is the reactivation of
the dormant VZV virus from the chickenpox infection.
What linear, double-stranded, enveloped DNA virus is the first
virus (as of Oct. 26, 1977) to be officially declared eradicated? -
correct answer -Smallpox
What small (~30nm) single-stranded, non-enveloped RNA virus
causes temporary or permanent paralysis by infiltrating (infecting)
motor neurons within the spinal cord, brain stem, or motor cortex?
- correct answer -Polop
By whom and where was the first polio vaccine developed? -
correct answer -Jonas Salk, University of Pittsburgh 1995
Which subtype of Influenza is the most virulent? - correct answer -
Influenza A
A drug company is trying to develop a new drug that will inhibit
viral entry of Influenza. Would the drug company target
