Assertion: embryo's cell | /r/CapableOf | begin forming second neural axis
Facets:
value: as a line of cells
type: MANNER
Source sentences:
text: In this latest experiment, when they grafted human embryonic stem cells that they treated with Wnt and Activin into chick embryos, the stem cells caused the cells around them to begin forming a second neural axis as a line of cells running along one side of the embryo.