Home Biology Biotechnology and Its Application Previous Year Questions Which one of the following techniques does n…
Biology Biotechnology and Its Application Previous Year Questions Single Correct MCQ
Published on: August 14, 2026

Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?

A
Enzyme Linked Immuno-Sorbent Assay (ELISA) technique
B
Recombinant DNA Technology
C
Serum and Urine analysis
D
Polymerase Chain Reaction (PCR) technique

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Text Solution

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The correct answer is:
C

Of these, serum and urine analysis does not fulfill the purpose of early diagnosis of a disease. In early stages of infections, when the disease symptoms are not visible, amplification of pathogenic nucleic acid can be done by PCR, detection of antibodies produced by host against pathogen by ELISA and rDNA technology can serve the purpose of early diagnosis.

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