Research or therapeutic cloning as it is often referred to seeks to develop therapeutic remedies for degenerative diseases. This research requires the use of stem cells. Both embryonic and adult stem cells are being utilised in this research. Results from the use of adult stem cells have to date proved generally less favourable than those with embryonic stem cells. There is a general consensus that embryonic stem (ES) cells offer signifi cantly more scientifi c chances of success than limiting research to adult cells. However, as discussed later, ES cells are controversial to use from an ethical point of.
