Born 23 May 1954.
British embryologist who was the key member of a team of scientists at Roslin Institute, Edinburgh, Scotland that produced the first mammal clone, a lamb called Dolly, by nuclear transfer from an adult’s cell. The reproduced DNA material came from a donor sheep’s udder cell. Dolly’s birth, on 5 Jul 1996, was announced on 23 Feb 1997. The team was supervised by Ian Wilmut.