PCR detects: (A) Antigen, (B) Antibody, (C) Nucleic acid, (D) All of the above
Answer is C. Polymerase chain reaction (PCR) is a technique used in molecular biology to amplify a single copy or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a paicular DNA sequenceRef: DM Vasudevan, 7th edition, page no: 638