I have to agree with PZ on this one. Suppose you were a couple who couldn't conceive "naturally" and had to use IVF, and the doctor in the clinic told you they had several potentially viable embryos--including a few who had some stem cells harvested from them (oh, but don't worry. Our laboratory rat studies show that those embryos are just as good as the ones we haven't tampered with.)
Would you (honestly) tell him to go ahead and implant the "research embryos?"
Of course not! Point in fact, at least 99% of embryos that are used for science (by this method--it's 100% for other methods) will never reach fetus status.
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I have to agree with PZ on this one. Suppose you were a couple who couldn't conceive "naturally" and had to use IVF, and the doctor in the clinic told you they had several potentially viable embryos--including a few who had some stem cells harvested from them (oh, but don't worry. Our laboratory rat studies show that those embryos are just as good as the ones we haven't tampered with.)
Would you (honestly) tell him to go ahead and implant the "research embryos?"
Of course not! Point in fact, at least 99% of embryos that are used for science (by this method--it's 100% for other methods) will never reach fetus status.
So what does this method really accomplish?
Nothing!!!
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