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Originally Posted by Letum
I don't see why this is a bad thing.
If it saves one life it will certinaly be a good thing, but I don't see that it eeven needs to achive that to be justifyed.
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Yeah, seriously. It's not like scientists are out to create living human-animal hybrids - I can't see any practical applications coming out of that and I certainly don't think the ethics that govern science allow for that variety of experiment. This is a way instead to circumvent the religious arguments against using human embryonic stem cells by taking an animal embryonic stem cell, replacing its nucleus with that of a living human's. Presto: human, undifferentiated, embryonic stem cell, eventually to become Schwann cells, muscle tissue, a heart chamber, or whatever.