I know that there are some that think it would be a good idea to eliminate men for various reasons, like that start wars to mention only one.  But these scientists are going a bit far.

A team of British scientists claimed Wednesday to have created human sperm using embryonic stem cells, in a medical first that they say will lead to a better understanding of fertility.Researchers led by Professor Karim Nayernia at Newcastle University and the NorthEast England Stem Cell Institute (NESCI) developed a new technique that allows the creation of human sperm in the laboratory.

They stressed that the sperm, developed from stem cells with XY chromosomes (male), would not be used for fertility treatment, as this is prohibited by law and in any case is not their main interest.

The team’s work involved developing stem cells that had XY chromosomes into germline cells — cells that can can pass their genetic material to future generations.

These were then prompted to complete meiosis, or cell division, which then produced “fully mature, functional sperm.”

Stem cells are immature cells that can develop into different cell types.

The scientists tried to develop cells with XX chromosomes (female) in the same way but they did not progress beyond early stage sperm, called spermatagonia. The team concluded that the genes on a Y chromosome are essential for sperm maturation.

Careful guys our days could be numbered, remember about the only thinbg we guys are good for, at least according to some women, is making babies.  If that is true and they take that away from us….why keep us around?