While some females would argue this has long been the case, British fertility researchers are on track to proving it, having created sperm using stem cells from an embryo.
Scientists at the Northeast England Stem Cell Institute say that with some minor adjustments, the technique could theoretically be used to
Is artificially-produced sperm a step too far for science?
British scientists claimed Wednesday to have created human sperm from stem cells but other experts questioned their data. Photo / AP
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