Biod 171 Exam 6 Questions and Correct
Answers
A drug company is trying to develop a new drug that will inhibit the release of
newly produced viral particles . Would the drug company target hemagglutinin
proteins or neuraminidase proteins ? Why ? - ANSWER-Neuraminidase .
Because they work directy with the release of the new virus and would be
better targets
.A drug company is trying to develop a new drug that will inhibit viral entry of
Influenza . Would the drug company target hemagglutinin proteins or
neuraminidase proteins ? Why ? - ANSWER-Hemagglutinin ( HA ) proteins would
be targets as they are directly involved in viral attachment and entry into the
host cell . Neuraminidase proteins are involved in the budding and release of
new viral particles and would thus not be the correct target .
.A patient diagnosed with German measles may additionally experience what
disease ? Select all that apply . - ANSWER-Conjunctivitis ; Influenza - like
symptoms .
.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 . - ANSWER-Infected person develope chickenpox . Unvaccinated and
unexposed must develope chickenpox first . Shingles is the reaction of the
dormant VZV virus .
, .A virus that infects bacteria is called a [ answer1 ] and contains a [ answer2 ] -
sided polygon capsid . - ANSWER-1. Bacteriophage 2. 20
.An individual infected with HIV is placed on anti - retroviral medication . What
is the general purpose of this medication ? - ANSWER-anti - retrovirals are
intended to inhibit ( anti ) the life cycle of retroviruses ( retro ) . By inhibiting
steps in the HIV's lifecycle , anti retroviral medications effectively block the
production of new virus particles and lower the viral load of the patient .
.Describe the main differences between lytic and temperate phages . - ANSWER-
Lytic bacteriophages replicate within the host bacteria cell until it reputures
Temporate phages exist in a non - replicative state that does not kill host cell
.Describe the main underlining differences between the Salk and Sabin polio
vaccine . - ANSWER-The Salk vaccine contained an inactivated form of the virus
and was injected while the Sabin vaccine contained a live attenuated (
weakened ) form of the virus and was administered orally .
.Describe the two basic components of a virus . - ANSWER-A has virus ( 1 )
genomic material comprised of either DNA or RNA and ( 2 ) a capsid , a
membrane - like protective structure that contains the genetic material , similar
to the nucleus of a eukaryotic cell .
.Explain why the flu shot given each year may not be 100 % effective at
preventing the flu ? - ANSWER-It is possible to recieve a flu shot and still be
infected with the flu if you are exposed to a viral stain that is not covered in the
shot . There are many variants of the flu . Researchers predict the type of
variant of flu that will prevalent in the coming year and produce a shot that will
cover that variant . The flu shot is not 100 % effective
Answers
A drug company is trying to develop a new drug that will inhibit the release of
newly produced viral particles . Would the drug company target hemagglutinin
proteins or neuraminidase proteins ? Why ? - ANSWER-Neuraminidase .
Because they work directy with the release of the new virus and would be
better targets
.A drug company is trying to develop a new drug that will inhibit viral entry of
Influenza . Would the drug company target hemagglutinin proteins or
neuraminidase proteins ? Why ? - ANSWER-Hemagglutinin ( HA ) proteins would
be targets as they are directly involved in viral attachment and entry into the
host cell . Neuraminidase proteins are involved in the budding and release of
new viral particles and would thus not be the correct target .
.A patient diagnosed with German measles may additionally experience what
disease ? Select all that apply . - ANSWER-Conjunctivitis ; Influenza - like
symptoms .
.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 . - ANSWER-Infected person develope chickenpox . Unvaccinated and
unexposed must develope chickenpox first . Shingles is the reaction of the
dormant VZV virus .
, .A virus that infects bacteria is called a [ answer1 ] and contains a [ answer2 ] -
sided polygon capsid . - ANSWER-1. Bacteriophage 2. 20
.An individual infected with HIV is placed on anti - retroviral medication . What
is the general purpose of this medication ? - ANSWER-anti - retrovirals are
intended to inhibit ( anti ) the life cycle of retroviruses ( retro ) . By inhibiting
steps in the HIV's lifecycle , anti retroviral medications effectively block the
production of new virus particles and lower the viral load of the patient .
.Describe the main differences between lytic and temperate phages . - ANSWER-
Lytic bacteriophages replicate within the host bacteria cell until it reputures
Temporate phages exist in a non - replicative state that does not kill host cell
.Describe the main underlining differences between the Salk and Sabin polio
vaccine . - ANSWER-The Salk vaccine contained an inactivated form of the virus
and was injected while the Sabin vaccine contained a live attenuated (
weakened ) form of the virus and was administered orally .
.Describe the two basic components of a virus . - ANSWER-A has virus ( 1 )
genomic material comprised of either DNA or RNA and ( 2 ) a capsid , a
membrane - like protective structure that contains the genetic material , similar
to the nucleus of a eukaryotic cell .
.Explain why the flu shot given each year may not be 100 % effective at
preventing the flu ? - ANSWER-It is possible to recieve a flu shot and still be
infected with the flu if you are exposed to a viral stain that is not covered in the
shot . There are many variants of the flu . Researchers predict the type of
variant of flu that will prevalent in the coming year and produce a shot that will
cover that variant . The flu shot is not 100 % effective
