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Conflict over moral status of embryos continues.


 Ethical questions are addressed that have arisen due to the rapid development of new medical technology involving the fertilized human ovum. Moral issues have arisen with the new progesterone antagonist, RU-486, and in vitro fertilization (IVF). 3 different ethical views of the embryo are presented: A permissive pro-choice position states either that the moral value of the fertilized egg depends on each pregnant woman's decision to humanize the embryo in her body or that the moral value of the fertilized egg increases as human development progresses. Some pro-life advocates argue that after implantation an irreversibly developing human being exists who has all the rights of a human being. The author suggests that some medical technological interventions and experimentation on embryos may be morally permissible to these pro-life advocates. The Vatican statement that the human being must be respected--as a person--from the very 1st instant of his existence sums up the 3d, view of an embryo's status. New knowledge of the very complex earliest stages of development, combined with other concepts and worldviews, appear to create honest doubt about the fertilized egg's status. For example, approximately 50% of fertilized ova are naturally lost, and the combination of 1 or more embryos into a mosaic casts doubt on the existence of an irreversible human. Relevant worldviews of postmodern understandings of science, the universe, and a new theology of creation must be considered to solve these ethical dilemmas.
