On 11/22/06, jack syme <drsyme@cablespeed.com> wrote:
> How is harvisting cells from a blastomere morally any different than a
> morula? How is it morally any different than a blastocyst?
Because in August when this paper was originally presented it could be
like preimplantation genetic diagnosis (PGD) where a blastomere is
extracted and the blastocyst is not destroyed and allowed to complete
to term. Thus, it cuts the gordian knot of the ethical dilemma of when
life begins. This got muddied when the experiment was revealed to
extract multiple blastomeres from the blastocyst, destroying the
embryos in the process. The authors extrapolated from the PGD work
that if could be done one at a time. This is not the same as proving
it in the experiment. The further information we learned from
tomorrow's Nature is that the multiple blastomeres were cultured in
the same medium making the results even more suspect.
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Received on Thu Nov 23 00:16:14 2006
This archive was generated by hypermail 2.1.8 : Thu Nov 23 2006 - 00:16:14 EST