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1. General Term: Trophoblast
Trophoblast The outer layer of cells of the mammalian blastocyst that
gives rise to the placenta.
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2. Stem Cell Topic: Question: What is the Embryonic Status of Totipotent and Pl...
all tissue, including the trophoblast
necessary for implantation. Totipotent stem cells have the potential of
becoming embryos. Pluripotent stem cells have every capability of the
totipotent stem cells minus one, namely, they have no
3. Stem Cell Topic: Question: What's in the Petri Dish, Property or Person?
it no longer has
access to a trophoblast ? Would the pluripotent hES cell be considered a
potential person if we could discover how to turn on its trophoblast genes and
make a placenta? Would these questions apply as well to hEG cells taken from
4. General Term: Blastocyst
made up of trophoblasts, which attach to the uterine wall and form the
placenta. Inside the trophoblast layer is the inner cell mass. These
cells remain undifferentiated. Embryonic Stem cells are derived from the
5. Stem Cell Topic: The Moral Status of Human Stem Cells
will not develop the trophoblast (the outer layer of cells of the embryo) or other structures
needed for continued development. Another way of putting this is to say that
stem cells are pluripotent rather than totipotent . It is true that