In contrast, each egg cell, or ovum, is relatively large and non-motile. During fertilization, a spermatozoon and ovum unite to form a new diploid organism.

The FSH causes the maturation of the follicles in the ovaries -- each follicle consists of an egg (ovum) surrounded by cells that produce ... of the embryo (the fertilized ovum).

Female: At birth, a girl's pair of ovaries contain up to 1,000,000 follicles, which are hollow balls of cells, each with an immature egg (or ovum ... the uterus without fertilization by a sperm ...

Sexual reproduction involves the joining of two sex cells or gametes – the sperm (male gamete) and the egg or ovum (female gamete). The male and female reproductive system The male reproductive ...

One of the common causes of a miscarriage is an anembryonic pregnancy, or blighted ovum in which the gestational ... in the division of the sperm or egg cells and are usually not inherited from ...