Scientists have reproduced a woman's egg

Previously, it was believed that a woman has a very limited supply of eggs that cannot be restored. But recent research by scientists from the Boston Center for Reproductive Biology proves that it is possible to grow an egg from a woman's stem cells.

Experts used tissue from an ovary removed from a 20-year-old girl. They isolated stem cells from it and observed how immature eggs developed from them for two weeks. Next, the scientists returned the eggs to the ovarian tissue, which were implanted under the skin of a living mouse, to ensure a better blood supply to the tissue. Thus, mature eggs were formed.

So far, biologists cannot say whether these eggs are fertile. But it is already known for sure that their characteristics are no different from those that ripen naturally. Now scientists are working to understand whether laboratory eggs are capable of forming an early stage embryo.