Interferon combat viral infection by...

Interferon combat viral infection by

A

inhibiting viral packaging directly

B

increasing the binding of antiboides to viruses.

C

binding to the virus and agglutinating them.

D

restricting viral spread to the neighbouring cells

Text Solution

Verified by Experts

The correct Answer is:

D

In a typical scenario, a virus defected cell will release interferons causing near by cells to heighten their anti-viral defense

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Interferon is

A

antiviral glycoprotein

B

antibacterial glycoprotein

C

antiviral lipoprotein

D

antiviral lipopolysaccharide

Interferons act against viral infection by

A

Protecting other cells against virus

B

Functioning as macrophages

C

Providing antibodies

D

Directly destroying genetic material of virus

In bacteria, the restriction enzyme plays an important role in defence against viral infection by chopping foreign DNA into pieses, but it does not cut its own DNA because of

A

difference in recognition sequence.

B

methylation of A or C at the recognition site.

C

restriction endonuclease leave the DNA out of the cells.

D

none of these

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Assertion. Interferons help eliminate viral infections. Reason. Interferons released by infected cells, reach the nearby uninfected cells and make them resistant to viral infection.

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