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Biology · 2024 · 2 marks
Biotechnology and its ApplicationsBiotechnological Applications in Medicine2 marksUnderstandvery short answer
CBSE 2024 · Region 4 · Set 2 · Q18
Why does a patient of ADA - deficiency require repeated infusions of genetically engineered lymphocytes? Suggest a possible permanent remedy.
Why does a patient of ADA - deficiency require repeated infusions of genetically engineered lymphocytes? Suggest a possible permanent remedy.
Marking-scheme solution
• The genetically – engineered lymphocytes have a limited life
span or are mortal hence the patient requires periodic infusion of genetically engineered lymphocytes.
• There could be a permanent cure if the gene isolated from bone
marrow cells producing ADA is introduced into the cells at early embryonic stage.
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CBSE Class 12 Biology past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.