Re: frist's flip-flop...

Personally, I think the debate about when "life" begins is irrelevant
to the discussion because both the egg and the sperm are alive in every
sense of the word. The issue for me is when does a human being arise
from the ball of cells that we call an embryo. Differentiation begins
when the blastocyst forms a rudimentary notochord/neural plate at about
two weeks gestation. Prior to this there is no organogenesis. If there
are no organs there is no person so I have absolutely no moral
objection to using these cells for research.

.

Relevant Pages

  • Re: Question about sperm and egg?
    ... The word "egg" has too many meanings. ... the single haploid cell that gets fertilized by the sperm, ... As the cells divide to form the embryo, ...
    (sci.bio.evolution)
  • Re: Ben Stein is EXPELLED
    ... Allegedly the French found a way to remove the "barrier" preventing a sperm from "penetrating" the barrier of the ovum of another species. ... a human sperm will penetrate a hamster egg more quickly than a human egg. ... However, each cell has either human DNA or chimp DNA, but not DNA from both organisms. ... So the egg and sperm cells would be either human cells or chimp cells, ...
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  • Re: When Does Life Begin?
    ... egg meets sperm and the point of implantation, ... egg nestles into the uterus and begins to grow. ... The eternal battle over when life, and rights, begin has been playing ... before the breath of air is prologue to life -- but not life. ...
    (soc.retirement)