High Quality Content by WIKIPEDIA articles! Michael Meredith Swann, Baron Swann, FRS (1920 – 22 September 1990) was a distinguished molecular and cell biologist working on the mechanisms of cell division and fertilisation. He used cell polarisation methods to understand the changes in molecular organisation of the mitotic spindle. With his collaborator Murdoch Mitchison, he found evidence in support of a new theory of cell division. He also collaborated with Victor Rothschild in experiments on changes in membrane structure during fertilisation. The Michael Swann Building at the University of Edinburgh is named after him, where work on cell division and fertilisation continues to this day.