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Biology · 2023 · 3 marks
Biotechnology and its ApplicationsBiotechnological Applications in Medicine3 marksUnderstandshort answer
CBSE 2023 · Region 1 · Set 1 · Q24
(a) Write the characteristics of 'stem cells'. (b) From where can one obtain 'stem cells' in humans? (c) State any two applications of 'stem cells'…
(a)
Write the characteristics of 'stem cells'.
(b)
From where can one obtain 'stem cells' in humans ?
(c)
State any two applications of 'stem cells' in curing human diseases.
Marking-scheme solution
(a) They have the ability of self-renewal / to divide, and differentiate into any kind of cell/tissue/organ.
(b) - Inner cell mass of blastocyst / umbilical cord / Bone marrow
(c) Diabetes treatment via forming islets of Langerhans, Restoration of vision by injecting stem cells, to treat rheumatoid arthritis, reduces pancreatic cancer, to treat genetic disorder like cystic fibrosis, spinal cord injurie, heart disease
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CBSE Class 12 Biology past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.