History of Genetics

[This page is still under construction]

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The history of genetics started with the work of Augustinian friar Gregor Johann Mendel on pea plants [1].

Important dates

1955 : Joe Hin Tjio determined the number of chromosomes in humans to be of 46. Tjio was working in Albert Levan‘s lab. This work has been published in Hereditas.

Selected references




1953 – Discovery of DNA structure

1903 – Wilhelm Ludwig Johannsen introduced the terms gene, phenotype, and genotype

  • Johannsen, W. (1903) Om arvelighed i samfund og i rene linier. Oversigt over det Kongelige Danske Videnskabernes Selskabs Forhandlinger, vol. 3: 247-270. German ed. Erblichkeit in Populationen und in reinen Linien (1903) Gustav Fischer, Jena. Scanned full text.
  • Ralf Dahm, « La première découverte de l’ADN », dans Pour la Science (ISSN 0153-4092), no 371, septembre 2008, p. 24-28.

1869 – Discovery of DNA by Friedrich Miescher

  • Dahm, R (Jan 2008). “Discovering DNA: Friedrich Miescher and the early years of nucleic acid research”. Human Genetics. 122 (6): 565–81. ISSN 0340-6717. PMID 17901982. doi:10.1007/s00439-007-0433-0.

1865 – Mendel’s Genetic Laws