Originally posted by Urban Ranger
There is no biological difference between a body cell and a fertilised egg.
Not so fast. A human zygote could not develop without external help, so it's not happening on its own accord.
See, here's the sticking point. The pro-life camp likes to gloss over it.
Try again, shall we?
There is no biological difference between a body cell and a fertilised egg.
Not so fast. A human zygote could not develop without external help, so it's not happening on its own accord.
See, here's the sticking point. The pro-life camp likes to gloss over it.
Try again, shall we?
I should think it would be quite obvious that there is a biological difference between a body cell and a fertilised egg. That is, in fact, what this whole damned stem cell debate is about; if there were no biological difference, stem cells from embryos would have no particular virtue and the debate would be nonexistent.
Also, I am not aware of any cases of normal body cells spontaneously transforming into fetuses. Please feel free to point out any studies in which somebody's right eyeball suddenly budded into a baby, but until that point I'll remain skeptical of your claim. If all that mattered was the environment of the uterus, human cloning would be the easiest thing on earth; all you'd have to do is stick a cell, any cell, in there during the right time of the month, and voila! instant baby. Women could become instantly pregnant from a guy getting to third base and sloughing off a few not-quite-dead skin cells in there.
BTW, you could not walk or talk without the oxygenated, properly pressurized, normal-gravity environment of the earth. Ergo, you do not live of your own accord.
Flip: I don't believe I've used a single religious argument in this thread. I think that all arguments other than plain genetic identity--the embryo/zygote/whatever having its own distinct set of DNA and thus forming a separate entity from either parent--is a matter of one's existential POV. The argument that humans are human by virtue of self-awareness or intelligence is dependent on our subscribing to the ideals of the Enlightenment, just as much as talking about souls is dependent on religious belief. Either way, you're imposing one group of people's opinion on the metaphysical meaning of our existence on the whole population, which may not share those views.
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