QuoteScientists have created viable egg cells from skin tissue taken from laboratory mice and have fertilised them in IVF experiments to produce normal, healthy offspring.

The advance is seen as an important breakthrough in attempts to find ways of producing egg cells from infertile women with defective ovaries. It could also lead to the prospect of women having babies after the menopause.

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"While this is a major contribution to knowledge, application to humans is still a long way off but for the first time the goal appears to be in sight," he added.