What is another word for pronucleus?
Pronunciation: [pɹˈɒnjuːklˌɪəs] (IPA) 
The pronucleus is an essential component of the fertilization process in organisms that utilize sexual reproduction. This nucleus is formed in both the sperm and the egg cells during the reproductive process. Synonyms for pronucleus include egg nucleus, sperm nucleus, germinal vesicle, and zygote nucleus. The egg nucleus is formed when the secondary oocyte, a cell produced in the ovaries, matures and is released during ovulation. The sperm nucleus is formed in the testes of the male and is delivered to the female reproductive system during sexual intercourse. The germinal vesicle is a structure that contains the egg nucleus before fertilization. Finally, the zygote nucleus is formed when the pronucleus from the sperm fuses with the pronucleus from the egg.
