Assertion: testis's germ cell | /r/CapableOf | reside among endoderm cells
Facets:
value: by the 3rd week
type: TEMPORAL
Source sentences:
text: Primordial germ cells originate in the epiblast, migrate through the primitive streak, and by the 3rd week reside among endoderm cells in the wall of the yolk sac near the origin of the allantois.