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John Murdoch Mitchison (born June 11, 1922, in Oxford; died March 17, 2011, in Edinburgh) was an important British zoologist. A zoologist is a scientist who studies animals. He was known for his work on how cells grow and divide.

Murdoch Mitchison
A picture of Murdoch Mitchison. It was taken by the Godfrey Argent Studio.

Early Life and Education

His Family and Relatives

John Murdoch Mitchison came from a family of talented people. His father, Dick Mitchison, was a politician from the Labour Party. His mother, Naomi Haldane, was a writer.

He had two brothers who also became scientists. His older brother, Denis Mitchison, studied bacteria. His younger brother, Avrion Mitchison, was also a zoologist.

John's uncle was the famous biologist J.B.S. Haldane. His grandfather, John Scott Haldane, was a physiologist. A physiologist studies how living things work. John's wife, Rosalind Mitchison, was a historian.

School and University

Murdoch Mitchison went to Winchester College for his schooling. Later, he studied at Trinity College, Cambridge.

In 1963, he became a Professor of Zoology at Edinburgh University. He had worked there for ten years before becoming a professor. In 1978, he was chosen to be a fellow of the Royal Society of London. This is a special honor for scientists.

His Scientific Work

Studying Cell Growth

Murdoch Mitchison was a leader in the field of cellular biology. This is the study of cells, which are the basic building blocks of all living things.

He used a type of yeast called Schizosaccharomyces pombe for his research. Yeast is a tiny living thing. He used it as a "model system" to learn about cells. This means he studied the yeast to understand how all cells grow and divide.

Mentoring a Nobel Prize Winner

Mitchison was also a mentor to other scientists. He advised Paul Nurse, who later won the Nobel Prize in Physiology in 2001. This shows how important Mitchison's work was to the world of science.

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