Mary F. Lyon

Mary Lyon
Lyon in 2010
Born
Mary Frances Lyon

(1925-05-15)15 May 1925
Norwich, England
Died25 December 2014(2014-12-25) (aged 89)
Alma materUniversity of Cambridge (BA, PhD)
Known forX-chromosome inactivation
Awards
Scientific career
InstitutionsUniversity of Edinburgh
Doctoral advisorRonald Fisher
Doctoral studentsElizabeth Fisher
Sohaila Rastan

Mary Frances Lyon FRS (15 May 1925 – 25 December 2014) was an English geneticist best known for her discovery of X-chromosome inactivation, an important biological phenomenon.