Key ideas1 of 3
Move a nucleus, not a chromosome
Adult cell cloning begins with an unfertilised egg cell whose nucleus is removed. A nucleus from an adult body cell, such as a skin cell, is then inserted into the egg cell. The transferred nucleus contains the adult donor's full set of nuclear genetic information. It is not a single chromosome or a sperm nucleus. The egg provides the cell contents needed to support the earliest stages of development.
