Question

______ are antiviral substances formed by many vertebrate animal cells in response to viral infection.

• A. Antivirins
• B. Antigens
• C. Virions
• D. Interferons

Answer 1

The correct option is D Interferons

Interferons are the cytokines or the signalling proteins that are released by the virus-infected cells to signal the neighbouring cells. This allows healthy cells to speed up their anti-viral responses.

A. Antivirin is the synthetic antiviral drug against the flu virus.

B. Antigens are the proteins or carbohydrates of a pathogen that are recognised by the antibodies.

C. Virions are the entire virus particle, consisting of an outer protein shell called a capsid and an inner core of nucleic acid.

D. Interferons are antiviral substances formed by many vertebrate animal cells in response to viral infection.

Hence, the correct answer is 'Interferons'