Assertion: ovum | /r/CapableOf | create zygote
Facets:
Source sentences:
text: The sperm and ovum unite through fertilisation, creating a zygote that (over the course of 8-9 days) implants in the uterine wall, where it resides for nine months.
text: It is mature enough to fuse with male germ cell nucleus and produce a zygote.