Assertion: testis's germ cell | /r/HasProperty | oogonia
Facets:
Source sentences:
text: The germ cells (oogonia) were always present within the stratified part.
text: Animal gametes originally derive from sexually undifferentiated primordial germ cells (PGCs), which develop into mitotic germ cells (oogonia or spermatogonia) before proceeding to meiosis [Wylie, C. (1999)