Home Biology Biotechnology Principles and Processes Previous Year Questions The genetic defect - adenosine deaminase (AD…
Biology Biotechnology Principles and Processes Previous Year Questions Single Correct MCQ
Published on: August 12, 2026

The genetic defect - adenosine deaminase (ADA) deficiency may be cured permanently by :-

A
Enzyme replacement therapy
B
Periodic infusion of genetically engineered lymphocytes having functional ADA cDNA
C
Administering adenosine deaminase activators
D
Introducing bone marrow cells producing ADA into cells at early embryonic stages

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The correct answer is:
D

A permanent cure for ADA deficiency requires replacing defective stem cells early. Gene therapy using bone marrow stem cells introduced at early embryonic stages can provide a long-term solution.

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