Cloning is the process of creating genetically identical copies of an organism, cell, or DNA fragment. Cloning raises ethical, social, and scientific concerns regarding identity, genetic diversity, and the potential for misuse.
In reproductive cloning, the nucleus of a donor cell is inserted into an egg cell whose nucleus has been removed, then implanted into a surrogate mother to develop into a genetically identical organism.
In therapeutic cloning, the cloned cells are used for medical purposes, such as generating tissues or organs for transplantation or studying genetic diseases.
