Assertion: blood cell's nucleus | /r/HasProperty | reprogrammed to undifferentiated state
Facets:
value: by trans-acting factors
type: CAUSE
Source sentences:
text: The cloning of Dolly demonstrated that nuclei from mammalian differentiated cells can be reprogrammed to an undifferentiated state by trans-acting factors present in the oocyte (1), and this discovery led to a search for factors that could mediate similar reprogramming without somatic cell nuclear transfer.