Virus MCQs | Virus Multiple Choice Questions(MCQs) & Answers

Questions
1 How many dsRNA segments are present in the reovirus genome?
A 1
B 3
C 50
D 10

Answer: 10
2 Which of the following viruses possess an envelope?
A Herpesvirus
B Reovirus
C Tobacco mosaic virus
D Papillomavirus

Answer: Herpesvirus

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3 Which of the following viruses have a complex symmetry?
A Alphavirus
B Mobillivirus
C Orthopoxvirus
D Parvovirus

Answer: Orthopoxvirus
4 For the cultivation of viruses the fertile chicken eggs should be incubated for how many day(s)?
A 1
B 2-4
C 5-12
D 2-7

Answer: 5-12
5 Which of the following method is used for the production of vaccines against yellow fever?
A tissue-culture method
B chick-embryo method
C through susceptible animals
D through appropriate media

Answer: chick-embryo method
6 Viruses range in size from:
A 1-100 nm
B 25-300 nm
C 10-100 μm
D 400-1000 nm

Answer: 25-300 nm
7 Enteroviruses differ from rhinoviruses mainly in their:
A Type of nucleic acid
B Size
C Capsid shape
D Ability to survive acidic conditions

Answer: Ability to survive acidic conditions
8 Outer viral 'proteins' also act as
A Antibody
B Receptor
C Antigen
D Coat

Answer: Antigen
9 Infectious particles that composed solely of proteins is known as
A Virion
B Prions
C Phage
D Bacteriophages

Answer: Prions
10 A single 'glycoprotein' that is present in prion, having an approximate molecular weight ranges from
A 27000-30000
B 2500-3000
C 3000-3500
D 4000-4500

Answer: 27000-30000
11 Prions' are remarkably resistant to formaldehyde and
A Acids
B Nucleases
C Bases
D Buffers

Answer: Nucleases
12 'Viroid' lacks
A DNA
B RNA
C Envelop
D Cell membrane

Answer: Envelop
13 When capsomeres are arranged in 20 triangles, resulting structure is called as
A Helical
B Icosahedral
C Spiral
D Triangular

Answer: Icosahedral
14 Number of capsid in a virus of common cold is
A 252
B 535
C 250
D 525

Answer: 252
15 Creutzfeldt-Jakob disease, a human disease caused by
A Virus
B Viroid
C Prion
D Phage

Answer: Prion
16 Size range of 'virus' is
A 20-300 nm
B 50-300nm
C 40-300nm
D 80-350nm

Answer: 20-300 nm
17 Viruses that contain host cell 'DNA' instead of viral 'DNA' is known as
A Virion
B Prion
C Bacteriophages
D Pseudoviruses

Answer: Pseudoviruses
18 All helical viruses are enclosed in 'nucleocapsid' known as
A Cell wall
B Cell membrane
C Envelop
D Boundary

Answer: Envelop
19 Disease of vascular lesions in epithelial layers of ectodermal tissues are formed in mouth or skin is known as
A Herpes simplex
B Influenza
C Polio
D Mumps

Answer: Herpes simplex
20 Virus depend on other plants and animals for its synthesis, that's why it is called as
A obligatory intracellular parasite
B obligatory extracellular parasite
C obligatory parasite
D intracellular parasite

Answer: obligatory intracellular parasite
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