Cloning means producing genetically identical organisms, identical either to each other or to some preexisting organism. Human cloning could be used to produce early embryos genetically identical to a patient, in order to derive immunologically compatible stem cells for the treatment of the patient's disease (therapeutic cloning); or, if cloned embryos were transferred to a woman's uterus, they could produce babies genetically identical to each other or to some progenitor (reproductive cloning).
Keywords: embryo splitting; nuclear transfer; stem cells; reproductive cloning; therapeutic cloning




