With reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct?
- Stem cells can be derived from mammals only
- Stem cells can be used for screening new drugs
- Stem cells can be used for medical therapies
Detailed Explanation:
❌ Statement 1 – Incorrect: Stem cells are found in all multicellular organisms, not just mammals—including plants, vertebrates, and invertebrates.
✅ Statement 2 – Correct: Stem cells are used for drug screening by generating specific cell types to test safety and efficacy of new pharmaceutical compounds before clinical trials.
✅ Statement 3 – Correct: Stem cells have applications in regenerative medicine including bone marrow transplants for blood disorders and tissue/organ repair.
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