Interferons are ...........

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(A) Interferons $(IFNs)$ are a group of signaling proteins made and released by host cells in response to the presence of several viruses. They are a

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Antiviral proteins

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(A) Interferons $(IFNs)$ are a group of signaling proteins made and released by host cells in response to the presence of several viruses. They are a type of cytokine that acts as an innate immune response. When a cell is infected by a virus,it secretes interferons,which signal neighboring cells to heighten their antiviral defenses,thereby preventing the spread of the viral infection. Therefore,they are classified as antiviral proteins.

Column-$I$	Column-$II$
$(A)$ Primary lymphoid organs	$(i)$ Thymus
$(B)$ $MALT$	$(ii)$ Spleen
$(C)$ Organ located near the heart	$(iii)$ Bone marrow
$(D)$ Bean-shaped organ	$(iv)$ Appendix
	$(v)$ $50\%$ of lymphoid tissue

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Match the following columns:
Column-$I$ Column-$II$
$(A)$ Primary lymphoid organs $(i)$ Thymus
$(B)$ $MALT$ $(ii)$ Spleen
$(C)$ Organ located near the heart $(iii)$ Bone marrow
$(D)$ Bean-shaped organ $(iv)$ Appendix
$(v)$ $50\%$ of lymphoid tissue

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