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Published online 10 July 2006 | Nature | doi:10.1038/news060710-1

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Mice born from stem-cell sperm

Mouse sperm has been made in a dish, but the method is too unreliable for use in humans.

For the first time, embryologists have shown that sperm created from embryonic stem cells can give rise to live offspring. The work, carried out by researchers in Germany and Britain, culminated in the production of six adult mice that owed their origins to sperm derived from these 'multipurpose' cells.

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