NEET Biology NEET PYQ-Viruses Viroids and Lichens

  • question_answer
    Small proteins produced by vertebrate cells naturally in response to viral infections and which inhibit mutliplication of viruses are called: [AIPMT 2000]

    A) immunoglobulins

    B) interferons

    C) antitoxins

    D) lipoproteins

    Correct Answer: B

    Solution :

    [b] Interferons (INFs) are a group of three vertebrate glyroproteins \[(\alpha ,\,\beta ,\,\gamma )\]. Out of these, two (\[\alpha \] and \[\beta \]) are produced within virally infected cells. Interferon induces, among adjacent cells, as antiviral state by inducing synthesis of the enzymes which inhibit the viral production cycle.


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