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In treating neurodegenerative disorders such as Parkinson's and Alzheimer's disease, which cells can replace the damaged neurons?
APancreatic beta cells
BRed blood cells
CNeuronal stem cells
DEmbryonic blastocysts
Answer & Solution
Correct answer: C. Neuronal stem cells
1. Stem-cell therapy uses stem cells to replace permanently damaged or lost cells.
2. For neurodegenerative disorders like Parkinson's and Alzheimer's, neuronal stem cells replace lost neurons.
3. Beta cells relate to diabetes and red blood cells carry oxygen, so options A and B are unrelated traps.
4. Hence the answer is C.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit "Breeding and Biotechnology", p.301_
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