Biology Biotechnology and Its Application All Topic Question For Revision Test Single Correct MCQ
Published on: August 13, 2026

Which technique is of least importance for early diagnosis of disease?

A
Recombinant DNA technology
B
Polymerase chain reaction
C
ELISA
D
Serum biochemical study

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Text Solution

Verified by Experts
The correct answer is:
D

For early diagnosis, NCERT emphasizes:

• Recombinant DNA technology

• PCR

• ELISA

Serum biochemical study is comparatively less important for very early detection at the molecular level.

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