Zoology · Biotechnology and its Applications
NEET (UG) 2023 — Question 138
Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?
- Option A:Correct
Serum and urine analysis
- Option B:
Polymerase Chain Reaction (PCR) technique
- Option C:
Enzyme Linked Immuno-Sorbent Assay (ELISA) technique
- Option D:
Recombinant DNA Technology
Answer: A
Step-by-step solution
Early diagnosis of a disease is facilitated by techniques that detect the pathogen or its genetic material at a very early stage, even before symptoms appear. Conventional methods like serum and urine analysis are not reliable for early diagnosis because they detect the disease only after the pathogen has multiplied and symptoms have appeared. Modern biotechnological techniques such as PCR, ELISA, and recombinant DNA technology can detect the pathogen or its DNA/RNA at very low levels, enabling early diagnosis. Therefore, the technique that does not serve the purpose of early diagnosis is serum and urine analysis. Hence, the correct answer is A.
Answer key and solution verified before publishing.
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- Exam
- NEET (UG) 2023
- Paper
- 2023 paper
- Subject
- Zoology
- Chapter
- Biotechnology and its Applications
- Topic
- Biotechnological Applications in Medicine