Assertion: Interferons are effective against viruses.
Reason: Proteins which can be synthesised only by genetic engineering are effective against viruses.

Options

A. If both assertion and reason are true and the reason is the correct explanation of assertion
B. If both assertion and reason are true and the reason is not the correct explanation of assertion
C. If assertion is true but the reason is false
D. If assertion is false but reason is true

Answer

C

Explanation

Interferons are the proteins that are effective against most viruses. They are naturally produced by virus infected cells. The proteins interact with adjecent cells and make them resistant to virus attack.
Now-a-days interferons are also being manufactured through genetic engireering.
Two mechanisms for the control of virus interferons have been suggested viz.,
(i). The interferons affect the cellular memebranes, so that the virus particles are not disseminated to the other cells, and
(ii). Interferons control the multiplication of virus particles by inhibiting their protein synthesis.