Scientists have managed to harvest healthy stem cells from abnormal frog embryos. a discovery that could put an end to ethical objections to therapeutic cloning in humans.
Most of those against therapeutic cloning object to the necessity of killing a perfectly good embryo to harvest stem cells. Stem cells are cells that can differentiate into any type of cell in the body and scientists hope that they hold the key to replacing damaged and diseased tissue.
Now scientists have managed to harvest perfectly good stem cells from evidently defective frog embryos. Writing in the Proceedings of the National Academy of Science …
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