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Q.
Interferons are
Bihar CECEBihar CECE 2009
Solution:
Interferons (IFNs) are natural cell-signaling proteins produced by the cells of the immune system of most vertebrates in response to challenges such as viruses, parasites and tumour cells. They belong to the large class of glycoproteins known as cytokines and are produced by a wide variety of cells in response to the presence of double-stranded RNA, a key indicator of viral infection.