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

Labs around the world are trying to turn cells into autobiographers, tracking their own development from embryos to adults.

The development of maternal egg cells is pivotal for survival – but also precarious. During meiosis, the DNA-containing ...

The landmark discovery by an Oregon Health & Science University team involved taking a skin cell from an 8-month ... the nucleus of a donated human egg cell with it. Stem cells have been a ...

combined with sperm outside the human body, and the resulting embryos are placed in the uterus. Typically, eggs or oocytes ...

You'll be given medication for this part. (Fun fact: Human egg cells are gigantic compared to the other cells in our body.) How many times someone will need to go through egg retrieval depends ...

A new study has outlined how mature egg cells can be cultured from "denuded" oocytes that would usually fail to mature.

Special cells surround the developing egg, providing essential nutrients and ... obtain offspring” in this manner. Besides helping human infertility, researchers say this method could increase ...

A person shall not purchase or offer to purchase a human egg or sperm for human somatic cell nuclear transfer or for any purpose other than treating human infertility or for clinical investigation ...