1. Virus capsids are made from subunits called: A) envelopes B) spikes C) capsom
ID: 271784 • Letter: 1
Question
1.
Virus capsids are made from subunits called:
A) envelopes B) spikes
C) capsomeres
D) prophages E) peplomers
2.A latent viral infection is an infection in which:
A)viral replication has stopped but may resume years or decades later upon reactivation
B)a viral infection causes a disease progression gradually over a long period
C)viruses remain within host cells and NEVER causes disease
D)viral replication is slow
3.Which of the following is a type of cytopathic effect?
A)inclusions in the nucleus
D)cells change shape
B)multinucleated cells
E)all of the choices are correct
C)inclusions in the cytoplasm
4.The hepatitis B virus:
A)infects only human liver cells.
D)All of the above
B)has a narrow host range.
E)A and B only
C)infects various cells of many mammals.
Explanation / Answer
Answer 1. The correct option is C. Capsomeres. Capsomere is a subunit of the capsid. It is an outer covering of protein that protects the genetic material of a virus.
Answer 2. The correct option is A. Viral replication has stopped but may resume years or decades later upon reactivation.
Answer 3. The correct option is E. All of the choices are correct.
Answer 4. The correct option is E. A and B only. HBV is a member of the Hepadnaviridae family. Viruses of this family have a narrow host range and infects hepatocytes in their respective hosts.
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