A California company has brought human cloning research to a new level with efficient production of cloned human blastocysts — an early stage of embryos.
The company, Stemagen in La Jolla in California, hopes that its achievement will be the first step towards using cloning techniques for biomedical research and, potentially, therapy. But first they will need to go the next step — using such blastocysts to establish self-propagating lines of embryonic stem cells that, as clones, would be genetically identical to a patient.
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