Sperm cells have a monumental task, but their days are numbered. From the moment they're made in the testes to the time they may spend winding their way up the labyrinthine of the female reproductive ...

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 ...

New work from UC Davis and the University of Utah shows how the 3D structure of DNA inside a germ cell commits it to develop into a sperm cell. The discovery could improve understanding of fertility ...

A new study hammers home how the "survival of the nicest" view makes no sense when it comes to evolution, says Jonathan R.

Neil Hunter, a professor in the Department of Microbiology and Molecular Genetics, has discovered a crucial step in how chromosomes stay connected during the development for egg cells and sperm, ...

July 10, 2006 — -- The BBC is reporting that scientists in Germany have not only grown sperm from the embryonic stems cells of mice, but that the sperm was capable of producing offspring. While ...

Harmful genetic changes in sperm become substantially more common as men age because some are actively favored during sperm production, new research has revealed. In a landmark study published today ...

WASHINGTON (AP) _ Embryonic stem cells have been encouraged to grow into sperm cells for the first time, Japanese scientists report. The work is very preliminary, and was done in the laboratory with ...