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How to Make Human Sperm in the Lab

July 8, 2009 // 4 Comments »

Scientists in Newcastle claim to have created human sperm in the laboratory in what they say is a world first. The new technique to grow sperm from embryonic stem cells was developed by Newcastle University and the NorthEast England Stem Cell Institute (NESCI). The male, XY stem cells underwent the crucial process of “meiosis” – halving the number of chromosomes. The process over creating and developing the sperm took four to six weeks. [Source]

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