By about 1900 the observations of Hertwig, Fol, and others were brought together to make the now-familiar picture: a single ...

Egg cells are our largest cells. They are so large, in fact, that they should have problems distributing proteins and nutrients within themselves. A new study analyzing this little-understood ...

Researchers have uncovered how egg cells prepare for the creation of life. Their work reveals the secrets of the Balbiani body, a remarkable structure that organizes essential molecules to guide early ...

Mammals are born with all the oocytes (or egg cells) they'll ever need, but how the cells remain alive and active for so long is something of a mystery. A pair of studies have now revealed it could ...

They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each ...

A novel molecular tool developed by a Lehigh University professor of biological sciences is enabling scientists to precisely ...

If you're male, your body uses meiosis to create sperm cells; if you're female, it uses meiosis to create egg cells. Others cells in your body contain 46 chromosomes: 23 from your father and 23 ...

Germ cells and sex cord stromal cells form when a fetus (baby) is developing. A fetus is made from a sperm cell and an egg cell. Germ cell tumors (GCTs) are also known as germ cell cancer. Germ cells ...

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 example is follicle-stimulating hormone, which travels from the mammalian brain to the ovary, where it triggers egg release. Some cells also respond to mechanical stimuli. For example ...