1. Which is not true of latent viruses? a. produce slow viral infections b. incl
ID: 40030 • Letter: 1
Question
1.
Which is not true of latent viruses?
a. produce slow viral infections
b. include herpes family of viruses
c. when not active, they are present in a silent infection
d. sporadically become activated and cause symptoms throughout life
e. after initial infection, they are always present in certain body tissues.
2.
Which is NOT true of a virus
a. cannot be destroyed with antibiotics
b. can be observed with electron microscope
c. are obligate intercellular parasites
d. are acellular
e. replicate only inside host cells
3.
All viruses have
a. DNA
b. RNA.
C. Glycoprotein spikes
D. host specificity
4. T/F all viral diseases convey lifelong immunity
5. T/F an attenuated virus in a vaccine is better for determining a long-lasting effect than a killed one.
Explanation / Answer
Answer:
1.A) d
2.A) d
3.A) All viruses have Glycoprotein spikes and host specificity.Viruses having only DNA or RNA not both.
4.A)
Once a person attacked by the virus,the host body responses primary immune response to produce antibodies against virus.So, when ever the same virus infect the same host body, the antibodies are responses like secondary immune system.(i.e.,like wise viral diseases convey lifelong immunity.)
5.A)
Yes,an attenuated virus in a vaccine is better for determining a long-lasting effect than a killed one.
Because in the case of killed virus vaccine prepared by killing the virus completely.but an attenuated virus produced by inactivate the virulence of pathogen.Due to this process An attenuated vaccine activate the host body to produce more no:of antibodies than killed one.
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