Ms Gibson, an elementary school teacher and her husband, a 36-year-old cyber security analyst, connected with the National Embryo Donation Center (NEDC), a Christian non-profit in Knoxville that ...

Scientists have observed a type of cell division in a prehistoric unicellular organism that resembles the embryonic ...

The Weizmann Institute team say their "embryo model", made using stem cells, looks like a textbook example of a real 14-day-old embryo. It even released hormones that turned a pregnancy test ...

A one-week old embryo only contains multipotent stem cells, which can develop only in a certain direction. The tissues are finally made by these kinds of multipotent stem cells. Almost all adult ...