History of Genetics

T.A. Knight

Period: Jan 1, 1790 to Dec 31, 1790

T.A. Knight was a British farmer who observed phenotypic "tendencies" in offsprin of cross pollinated and self pollinated pea plants.

Gregor Mendel publishes his research.

Period: Jan 1, 1866 to Dec 31, 1866

Gregor Mendel publishes his data and research from his studies crossing different varieties of pea plants in the "Journal of the Brno Natural History Society".

Carl Correns rediscovers Mendel's research and publishes his own

Jan 25, 1900

German genetecist and botanist, Carl Correns, publishes his first papaer. In it he rediscovers Gregor Mendel's work and asserts his own findings of the significance of chromosomes in heredity.

Chromosomal theory of inheritance and Walter Sutton

Dec 1, 1902

American scientist, Walter Sutton, publishes "On the Morphology of the Chromosome Group in Brachyotola." Through his research he formulates the chromosomal theory of inheritance.

Thomas Hunt Morgan and Sex Linked Traits

Period: Jan 1, 1909 to Dec 31, 1910

Thomas Hunt Morgan leads research that will ultimately lead to the discovery of sex-linked traits and inheritance.

Rosalind Franklin and X-ray diffraction

Period: Jan 1, 1953 to Dec 31, 1953

Rosalind Franklin's research of X-ray difraction and DNA suggests that DNA molecule has the shape of a helix.

Francis Crick and James Watson

Period: Jan 1, 1953 to Dec 31, 1953

Francis Crick and James Watson deduce the helical structure of DNA.