Original: Walter Stanborough Sutton (April 5, 1877 - November 10, 1916) was an American geneticist and physician whose most significant contribution to present-day biology was his theory that the Mendelian laws of inheritance could be applied to chromosomes at the cellular level of living organisms.
Simplified: Walter Stanborough Sutton (April 5, 1877 - November 10, 1916) was an American biologist.