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Published online 27 November 2001 | Nature | doi:10.1038/news011129-9

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Human clone not miracle cure

Rewiring the egg: mechanism remains murky.

From a scientific viewpoint, the cloning of human embryos may be more of a step than a leap, say sceptics. If the signals that turn adult cells into embryonic ones can be found, the creation of cloned embryos for tissue repair may become redundant.

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