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Stem cells are cells found in all multi-cellular organisms. They were isolated in mice in 1981, and in humans in 1998. [1] In humans there are many types of stem cells, each with varying levels of potency. Potency is a measure of a cell's differentiation potential, or the number of other cell types that can be made from that stem cell.
Human cloning. Human cloning is the creation of a genetically identical copy of a human. The term is generally used to refer to artificial human cloning, which is the reproduction of human cells and tissue. It does not refer to the natural conception and delivery of identical twins. The possibilities of human cloning have raised controversies.
Stem cell laws are the law rules, and policy governance concerning the sources, research, and uses in treatment of stem cells in humans. These laws have been the source of much controversy and vary significantly by country. [1] In the European Union, stem cell research using the human embryo is permitted in Sweden, Spain, Finland, Belgium ...
The United Nations adopted a declaration on human cloning that can be interpreted as calling on member states to prohibit somatic cell nuclear transfer, or therapeutic cloning. In 2005, in a divided vote, "Member States were called on to adopt all measures necessary to prohibit all forms of human cloning in as much as they are incompatible with ...
The United Nations Declaration on Human Cloning was a nonbinding statement against all forms of human cloning approved by a divided UN General Assembly . The vote came in March 2005, [1] after four years of debate and an end to attempts for an international ban. In the 191-nation assembly, there were 84 votes in favor of a nonbinding statement ...
The stem cell controversy concerns the ethics of research involving the development and use of human embryos. Most commonly, this controversy focuses on embryonic stem cells. Not all stem cell research involves human embryos. For example, adult stem cells, amniotic stem cells, and induced pluripotent stem cells do not involve creating, using ...
Numerous experiments which were performed on human test subjects in the United States in the past are now considered to have been unethical, because they were performed without the knowledge or informed consent of the test subjects. [1] Such tests have been performed throughout American history, but have become significantly less frequent with ...
Ethics of cloning. In bioethics, the ethics of cloning concerns the ethical positions on the practice and possibilities of cloning, especially of humans. While many of these views are religious in origin, some of the questions raised are faced by secular perspectives as well. Perspectives on human cloning are theoretical, as human therapeutic ...