Scientists have grown in a test tube "female sperm"

Get a team of researchers at the University of Newcastle succeeded sperm progenitor cells from stem cells in female embryos, reports Telegraph. The experimental results open the way for the development of in vitro fertilization techniques, which do not. Participation of men To turn now head of the research project, Professor Karim Nayerniya prepare an application for the experiment of sperm in the bone marrow from female donors. Since some of the genes that control the process of spermatogenesis is the male sex chromosome, many experts maintain doubts about the possibility of the male sex from the cells of the female body expressed. New experiment proves that it is possible in principle. In the future, grown in the lab, can "female" sperm for artificial insemination is used. In this case, the biological "father" of the resulting child is a female donor cells from which sperm were to be preserved. However, scientists have not capable of the female cells mature sperm in a position to receive a fertilized egg. Recall that in the record of the professor Nayernii there are many high-profile and successful research. Last spring, his team sperm progenitor cells obtained from bone marrow cells of male donor. A year earlier, the researchers were able to impregnate bred, female mice sperm from bone marrow of male mice. As a result of the experimental animals showed viable offspring. Report on a new study Nayernii remains unpublished.