Answer :
Final answer:
In the United States, creating human clones from pluripotent cells is not a current practice, making option B the correct choice. Other options, such as reprogramming stem cells and creating tissues from embryonic stem cells, are actively used in research and clinical applications. Testing the effectiveness of medicines with stem cells is also a valid current use.
Explanation:
Current Uses of Stem Cells
Stem cells have various applications in medicine, particularly due to their ability to differentiate into a variety of cell types. Let's examine the options provided:
- Reprogramming stem cells to mimic skin cells: This is a current practice, especially in treatments for skin regeneration and repair.
- Creating human clones from pluripotent cells: This is NOT a current practice in the United States. Although there have been discussions and experiments around cloning, creating human clones for any purpose, including obtaining stem cells, is not accepted or performed due to ethical and legal implications.
- Creating tissues from embryonic stem cells: This technique is used in research and therapy, making it a valid application of stem cells.
- Testing the effectiveness of medicines: This is another area where stem cells are used for preclinical testing of drugs, helping to determine their effects on human cells.
Thus, the correct answer to the question is option b, as creating human clones from pluripotent cells is not a current use of stem cells in the United States.
Learn more about Stem Cells here:
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