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Free download in PDF Virus Multiple Choice Questions & Answers for competitive exams. These Virus Objective Questions with Answers are important for Board Exams as well as competitive exams of Biotechnology, Virology, AIIMS, NEET and other Pre-Medical Exams. These short solved questions or quizzes are provided by Gkseries.
(1)
How many dsRNA segments are present in the reovirus genome?
[A]
1
[B]
3
[C]
50
[D]
10
(2)
Which of the following viruses possess an envelope?
[A]
Herpesvirus
[B]
Reovirus
[C]
Tobacco mosaic virus
[D]
Papillomavirus
(3)
Which of the following viruses have a complex symmetry?
[A]
Alphavirus
[B]
Mobillivirus
[C]
Orthopoxvirus
[D]
Parvovirus
(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
(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
(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
(9)
Infectious particles that composed solely of proteins is known as
[A]
Virion
[B]
Prions
[C]
Phage
[D]
Bacteriophages
(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
(11)
Prions' are remarkably resistant to formaldehyde and
[A]
Acids
[B]
Nucleases
[C]
Bases
[D]
Buffers
(12)
'Viroid' lacks
[A]
DNA
[B]
RNA
[C]
Envelop
[D]
Cell membrane
(13)
When capsomeres are arranged in 20 triangles, resulting structure is called as
[A]
Helical
[B]
Icosahedral
[C]
Spiral
[D]
Triangular
(14)
Number of capsid in a virus of common cold is
[A]
252
[B]
535
[C]
250
[D]
525
(15)
Creutzfeldt-Jakob disease, a human disease caused by
[A]
Virus
[B]
Viroid
[C]
Prion
[D]
Phage
(16)
Size range of 'virus' is
[A]
20-300 nm
[B]
50-300nm
[C]
40-300nm
[D]
80-350nm
(17)
Viruses that contain host cell 'DNA' instead of viral 'DNA' is known as
[A]
Virion
[B]
Prion
[C]
Bacteriophages
[D]
Pseudoviruses
(18)
All helical viruses are enclosed in 'nucleocapsid' known as
[A]
Cell wall
[B]
Cell membrane
[C]
Envelop
[D]
Boundary
(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
(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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