Assertion: round spermatid | /r/CapableOf | initiate their elongation
Facets:
value: in stage viii
type: TEMPORAL
Source sentences:
text: In the unperturbed testis, spermatid development has been subdivided into 16 steps; step 8 round spermatids initiate their elongation in stage VIII and become step 9 elongating spermatids in stage IX (Fig. 1).