Cloning is a term traditionally used to describe different processes for duplicating biological material. A clone is an organism that is a genetic copy of an existing one. The use of the technique of nuclear transfer for reproduction of human beings is surrounded by strong ethical and legal concerns and controversies. Some international organizations have made significant efforts to establish common standards about challenges raised by human cloning. They argue that reproductive cloning is ethically unacceptable and contrary to human integrity and morality and should be prohibited. Ultimately in February 2005, the legal committee recommended to the United Nation General Assembly the adoption of a declaration on human cloning by which member states were called upon to prohibit all forms of human cloning in as much as they are incompatible with human dignity and the protection of human life.