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  1. Plant physiology. Institutions. University of Copenhagen. Wilhelm Johannsen (3 February 1857 – 11 November 1927) was a Danish pharmacist, botanist, plant physiologist, and geneticist. He is best known for coining the terms gene, phenotype and genotype, and for his 1903 "pure line" experiments in genetics .

  2. Wilhelm Ludvig Johannsen, im Deutschen auch Wilhelm Ludwig Johannsen (* 3. Februar 1857 in Kopenhagen; † 11. November 1927) war ein dänischer Botaniker und Genetiker. Er prägte den Begriff „ Gen “ als Träger der Vererbung. Inhaltsverzeichnis. 1 Leben. 2 Schriften (Auswahl) 3 Literatur. 4 Weblinks. 5 Einzelnachweise. Leben.

  3. Wilhelm Ludvig Johannsen (born Feb. 3, 1857, Copenhagen, Den.—died Nov. 11, 1927, Copenhagen) was a Danish botanist and geneticist whose experiments in plant heredity offered strong support to the mutation theory of the Dutch botanist Hugo de Vries (that changes in heredity come about through sudden, discrete changes of the heredity units in ...

    • The Editors of Encyclopaedia Britannica
  4. 22. Apr. 2013 · Learn how Danish botanist Wilhelm Johannsen coined the word gene in 1909 to describe the Mendelian units of heredity. Find out how he also distinguished between phenotype and genotype, and how his term influenced genetics.

  5. Joh a nnsen, Wilhelm Ludvig, dänischer Botaniker und Genetiker, *3.2.1857 Kopenhagen, †11.11.1927 Kopenhagen; ab 1903 Professor für Pflanzenphysiologie an der landwirtschaftlichen Hochschule, ab 1905 an der Universität in Kopenhagen; Mitbegründer der wissenschaftlich-experimentellen Pflanzenzüchtung und der klassischen Genetik, die er ...

  6. 16. Nov. 2012 · Learn about the life and work of Wilhelm Johannsen, who studied plants and helped found the field of genetics. He introduced the concepts of gene, genotype, and phenotype, and challenged vitalism and teleology in biology.

  7. 23. Dez. 2015 · In addition to his experiments on selection in pure lines, Wilhelm Johannsen (1857–1927) performed less well-known hybridisation experiments with beans. This article describes these experiments and discusses Johannsens motivations and interpretations, in the context of developments in early genetics. I will show that Johannsen ...