Wilhelm Ludvig Johannsen | |
|---|---|
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| Born | 3 February 1857 |
| Died | 11 November 1927 (aged 70) Copenhagen, Denmark |
| Alma mater | University of Copenhagen |
| Known for | proving the constancy of the genome Coining gene, genotype and phenotype |
| Scientific career | |
| Fields | Genetics 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.