Characteristic only of Viruses

# Which of the following is characteristic only of viruses?
A. They are intracellular organisms
B. They affect the production of interferon and are sensitive to it.
C. They reproduce by binary fission
D. They can be grown on inanimate media


The correct answer is  B. They affect the production of interferon and are sensitive to it.

Virus cannot divide by binary fission and cannot grow on inanimate media.
Viruses are obligate intracellular parasites along with chlamydia and Rickettsia.
Interferons are produced by viruses, Chlamydia and Rickettsia. But, viruses are more sensitive to production of interferon compared to Chlamydia and Rickettsia.



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