Israeli and UK researchers have created human sperm and egg precursor cells in a dish ... embryo could then be implanted in a surrogate mother — enabling the two men to have a biological ...

The researchers used cells from the tails of adult mice to create induced pluripotent stem (iPS) cells, and then coaxed those iPS cells to become mouse sperm and eggs. They've even used those ...

And although those chromosomes come from both parents, nearly all humans inherit their mitochondrial DNA (mtDNA) from their mother's egg cell. So what happens to the mtDNA in the sperm cell?

Adult stem cells extracted from human bone marrow have been coaxed into becoming male reproductive cells. Human bone marrow has been used to create early-stage sperm cells for the first time, a ...

A new study shows that lab-grown sperm cells can be derived from stem cells. July 9, 2009 — -- The face of infertility-- in literature, in the media, in advocacy groups -- is so predominantly ...

Sperm is the male reproductive cell in vertebrates ... one one half of which is inherited from the mother and the other from the father. For this purpose, the male and female reproductive cells ...

The goal of IVG is to make unlimited supplies of what Hayashi calls "artificial" eggs and sperm from any cell in the human body. That could let anyone — older, infertile, single, gay ...

They have taken stem cells from an embryo and created human sperm. It's very exciting, said the man who led the team. They have heads, they have tails, and they move. They have all the essential ...

His parents enrolled him in a study that was collecting and storing immature testicular tissue, and the sperm-forming stem cells in them, from young patients with the goal of eventually giving ...

While all other cells in your body contain 46 chromosomes (23 from your father and 23 from your mother), your egg (or sperm) cells contain only half that number—a total of 23 chromosomes.