Assertion: stem cell | /r/HasProperty | derived
Facets:
value: from embryos
type: OTHER
value: from blastocysts
type: OTHER
Source sentences:
text: Stem cells—characterized by the ability to both self-renew and to generate differentiated functional cell types—have been derived from the embryo and from various sources of the postnatal animal.
text: The materials submitted to the working group must demonstrate that the stem cells were derived from embryos created for reproductive purposes, and are no longer needed.
text: A vocal minority of Americans objects to the destruction of embryos that occurs when stem cells are derived.
text: Stem cells are derived from blastocysts that have only developed for about five days after fertilization.