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Quiz on Virus

Quiz on Virus

A virus is a small infectious agent that replicates only inside the living cells of an organism. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

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Quiz Questions And Answers

Inclusion bodies of measles virus are

intracytoplasmic
intranuclear
both (a) and (b)

Which of the following viruses belong to family Hepadnaviridae?

Hepatitis A virus
Hepatitis B virus
Hepatitis D virus

The most popular indirect method of counting virus particles is by

plaque-assay
hemagglutination assay
counting plaque-forming units

The envelope of an enveloped virus is derived from

the mitochondrion of the cell
the endoplasmic reticulum of the cell
the cell membrane

What kind of embryo is often used for viral assays?

Mouse
Chicken
Cat

Which one is not useful in the treatment of viruses except

acyclovir
interferon
penicillin

Lesions on chorioallantoic membrane are produced by

Vaccinia virus
Herpes simplex virus
Both a and b

Bacteriophages have been used widely in genetic research, since they are the smallest and simplest biological entities capable of

self-replication
duplication
self-duplication

Which of the following is not true of virions?

Contain DNA
Reproduce independently
Contain RNA

The most complex type of bacterial viruses having hexagonal head, a rigid tail with a contractile sheath and tall fibers is morphologically classified as

A
B
C

The sequence of nucleic acid in a variety of viruses and viral host, will find more similarities

among different viruses than between viruses and their hosts
among different viral hosts than between viruses and their hosts
between viruses and their hosts than among different viruses

Reverse transcriptase is a useful enzyme to have when

an RNA virus converts its RNA to DNA
there are no host cells present
nutrients are scarce

Viruses require __________ for growth.

animals
living cells
bacteria

Viruses largely lack metabolic machinery of their own to generate energy or to synthesize

protein
carbohydrate
alcohol

Which of the following disinfectant is effective against viruses?

Hydrogen peroxide
Potasium permagnate
Sulphur
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