In some cases, though, the unfertilised ovum itself is believed to be affected.
From the economist.com
An ovum may remain fertile for at least two days, and sperm for about 36 hours.
From the time.com
When released by the worm in the intestine, the egg contains an unsegmented ovum.
From the en.wikipedia.org
The DNA in a donated ovum can be removed and replaced with the DNA of the receiver.
From the en.wikipedia.org
In the case of a mammal such as a human, a pregnantwomangestates a fertilized ovum.
From the en.wikipedia.org
The secondary oocyte promptly matures into an ootid and then becomes a mature ovum.
From the en.wikipedia.org
Her embryo was created by taking the cell and inserting it into a sheep ovum.
From the en.wikipedia.org
Fertilization is when a sperm cell enters an ovum and forms a viable zygote.
From the en.wikipedia.org
Sea urchins were the first species in which sperm cells were proven to fertilize the ovum.
From the en.wikipedia.org
More examples
The female reproductive cell; the female gamete
Ovum commonly refers to: *Ovum, oosphere or egg cell: the female gamete involved in oogamous sexual reproduction
The female gamete in animals; the egg cell
A mature egg cell released during ovulation from an ovary.
Unfertilised egg-cell containing a haploid nucleus.
The egg; the reproductive cell from the ovary; the female gamete; the sex cell that contains the woman's genetic information.
A mature egg that has undergone reduction, is ready for fertilization, and takes the form of a relatively large inactive gamete providing a comparatively great amount of reserve material and contributing most of the cytoplasm of the zygote.
The female sex or germ cell. Ova is the plural. Other terms are egg(s), oocyte(s).