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Pour commencer, on prend le noyau d'une cellule somatique, c'est-à-dire une cellule du corps, et on l'introduit dans un ovule duquel on a retiré le noyau. Voilà, en réalité, comment on a créé Dolly. Cette nouvelle cellule servira, dans un sens, non pas à cloner—comme ce fut le cas pour Dolly—un être humain, mais à des fins thérapeutiques.
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To start at the beginning, one would take the nucleus of a somatic cell, a body cell, and use it to put into and remove the nucleus of an egg and put that somatic nucleus in. That's really how Dolly was generated. You now use that new cell, if you will, not to clone—as with Dolly—a human being but to actually use these as cells now in a therapeutic sense—in a transplant to replace diseased tissue, for example, or to study in a laboratory the nature of the mutation or the disease if the source of the nucleus is from an individual with the disease in question.
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