Q. 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
Explanation
[Solution from source] PCR, ELISA and rDNA technology can detect infection before symptoms appear; serum and urine analysis does not serve early diagnosis. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.