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Write any two biochemical/molecular diagnostic procedures for early detection of viral infection. Explain the principle of any one of them.
Answers (1)
Two diagnostic procedures for early detection of viral infection are -
i) Recombinant DNA technology
ii)Polymerase Chain Reaction (PCR)
iii) Enzyme-Linked Immuno-sorbent Assay (ELISA)
PRINCIPLE OF PCR -
Amplifies a specific nucleic acid sequence exponentially producing billions of copies. Very low concentration of a bacteria or virus (at a time when the symptoms of the disease are not yet visible) can be detected by amplification of their nucleic acid by PCR.
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