Assertion: adult stem cell | /r/CapableOf | exist as minor populations
Facets:
value: within a mature individual
type: LOCATION
Source sentences:
text: Embryonic stem cells make up a significant proportion of a developing embryo, while adult stem cells exist as minor populations within a mature individual (e.g. in every 1,000 cells of the bone marrow, only one will be a usable stem cell).