Multiple choice

Body cells infected with virus produce a protein called

  1. interferon

  2. properdin

  3. gamma globulin

  4. hybridoma
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A Correct answer
Explanation

When body cells are infected with viruses, they produce interferon - a group of signaling proteins that interfere with viral replication. Interferons trigger immune responses and help protect neighboring cells from infection. Properdin is part of complement system, gamma globulins are antibodies, and hybridoma is a laboratory-produced cell hybrid.

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