Assertion: Interferons are a type of antibodi | vedclass

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(D) Interferons are not antibodies; they are a class of glycoproteins known as cytokines produced by cells in response to viral infections,not bacteri

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If both the Assertion and Reason are incorrect.

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(D) Interferons are not antibodies; they are a class of glycoproteins known as cytokines produced by cells in response to viral infections,not bacterial infections. Therefore,the Assertion is incorrect.Interferons do not primarily stimulate inflammation at the site of injury; their main function is to inhibit viral replication and induce an antiviral state in neighboring cells. Therefore,the Reason is also incorrect.Since both the Assertion and the Reason are false,the correct option is $D$.

Column-$I$	Column-$II$
$P$. Physical barriers	$I$. Acid in stomach,saliva in mouth,tears from eyes
$Q$. Physiological barriers	$II$. Skin,mucus coating of epithelium lining the respiratory,gastrointestinal and urogenital tracts
$R$. Cellular barriers	$III$. Interferons
$S$. Cytokine barriers	$IV$. Polymorphonuclear leukocytes ($PMNL$-neutrophils),monocytes,$NK$ cells,macrophages

Assertion: Interferons are a type of antibodies produced by body cells infected by bacteria.
Reason: Interferons stimulate inflammation at the site of injury.

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Assertion: Interferons are a type of antibodies produced by body cells infected by bacteria.Reason: Interferons stimulate inflammation at the site of injury.