- The model answer correctly identifies that adult stem cells are currently used in therapies for leukemia and lymphoma, which is accurate.
- It explains that adult stem cells are harvested from the patient’s own bone marrow or blood, reducing the risk of immune rejection, which is a key advantage.
- The model answer acknowledges the limitation that adult stem cells have a more restricted differentiation potential compared to embryonic stem cells, which is scientifically valid.
- It correctly states that adult stem cells are not as versatile as embryonic stem cells but are still valuable for treating certain diseases like leukemia.
- The model answer appropriately notes that while embryonic stem cells offer greater potential, their use is controversial due to ethical concerns, which aligns with current scientific and societal discourse.
- The extended response correctly compares adult and embryonic stem cells by highlighting differences in source, differentiation potential, and ethical considerations.
- It accurately describes how adult stem cells are obtained from the patient’s own body, minimizing immune rejection risks.
- The response correctly points out that embryonic stem cells can differentiate into any cell type, making them more versatile but ethically contentious.
- It appropriately addresses the controversy surrounding embryonic stem cell research, noting public and religious objections.
- The extended response concludes by acknowledging that despite limitations, adult stem cells are currently more practical for clinical applications due to fewer ethical and immunological issues.
Parent Tip: Review the logic above to help your child master the concept of stem cell worksheet.
