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Biology · 2025 · 1 mark
Biotechnology and its ApplicationsBiotechnological Applications in Medicine1 markUnderstandassertion reason
CBSE 2025 · Region 2 · Set 2 · Q16
Assertion (A): A patient of ADA-deficiency requires periodic or repeated infusion of genetically-engineered lymphocytes. Reason (R): Lymphocytes are…
Assertion (A) : A patient of ADA-deficiency requires periodic or repeated infusion of genetically-engineered lymphocytes.
Reason (R) : Lymphocytes are not immortal, but have life span.
Official answer
(A)
Both (A) and (R) are true and (R) is the correct explanation of (A).
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CBSE Class 12 Biology past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.