Sperm made from human bone marrow

Scientists say they have successfully made immature sperm cells from human bone marrow samples. A leading researcher and secretary of the British Fertility Society, Dr Allan Pacey of the University of sheffield said that "this kind of work will be useful in helping us undersatnd the biology of how sperm are made. Read more at: https://news.bbc.co.uk/1/hi/health/6547675.stm