Fertilization consists in the union of the spermatozoön with the mature ovum (Fig. 8).
[Gr. oon - an egg; Gr. genesis - origin, descent] The process in females whereby a mature ovum is formed from an oocyte.
The final stages of ova production will then not resume until puberty.[6] In females, each of the original diploid germ cells or primary oocytes will form only one mature ovum, and three polar bodies which are not capable of fertilization.
 See also: Ovum, Trans, Cell, Cells, Embryo
  
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