Human cloning is the replication of a human using the DNA in the cells of the donor. Human embryos have been cloned for use in research, but no credible scientist or scientific organisation has attempted to implant a cloned embryo. In the United States and many other countries, implanting a cloned embryo is illegal. | Human cloning is the replication of a human using the DNA in the cells of the donor. Human embryos have been cloned for use in research, but no credible scientist or scientific organisation has attempted to implant a cloned embryo. In the United States and many other countries, implanting a cloned embryo is illegal. |