Class 12 Biology Ecology Kingdom - Monera And Viruses
Small proteins produced by vertebrate cells naturally in response to viral infections and which inhibit multiplication of viruses are called
(a)
immunoglobulins
(b)
interferons
(c)
antitoxins
(d)
lipoproteins
Correct answer: (b) 
Solution: Interferons (INFs) are a group of three vertebrate glycoproteins () . Out ot three , two () are produced within virally infected cells. Interferon act as antiviral protein by inducing synthesis of the enzymes which inhibit the viral production cycle. So, interferons are inhibitors of virus particles.

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