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Johann Gregor Mendel (1822–1884)
By: Sarah Walls
| Published: Jan 13, 2022
Johann Gregor Mendel studied patterns of trait inheritance in plants during the nineteenth century.
BotanyMendel's lawGenetics
Matthias Jacob Schleiden (1804–1881)
By: Sara Parker
| Published: May 29, 2017
Matthias Jacob Schleiden helped develop the cell theory in Germany during the nineteenth century. Schleiden studied cells as the common element among…
Cell BiologyBotanyEpigenesisEmbryologyBiology, Experimental
Wilhelm Friedrich Phillip Pfeffer (1845-1920)
By: Sara Parker
| Published: Nov 30, 2014
Wilhelm Friedrich Phillip Pfeffer studied plants in Germany during the late nineteenth and early twentieth centuries. He started his career as an…
Plant physiologyBotanyPlants--Irritability and movementsOsmotic PressureChemotaxis
Muriel Wheldale Onslow (1880-1932)
By: Samantha Hauserman
| Published: Oct 17, 2013
Muriel Wheldale Onslow studied flowers in England with genetic and biochemical techniques in the early twentieth century. Working with geneticist…
PeopleHeredityBiochemistryEpistasis (Genetics)Genetics
Johann Gregor Mendel (1822-1884)
By: Amanda Andrei
| Published: Jul 27, 2013
Johann Gregor Mendel studied plants and their patterns of inheritance in Austria during the nineteenth century. Mendel experimented with the pea…
GeneticsMendel's lawPeasBotany, ExperimentalBotany
Wilhelm Johannsen's Genotype-Phenotype Distinction
By: B. R. Erick Peirson
| Published: Dec 07, 2012
Wilhelm Johannsen in Denmark first proposed the distinction between genotype and phenotype in the study of heredity in 1909. This distinction is…
Johannsen, W. (Wilhelm), 1857-1927Genotype-environment interactionPhenotypeHeredityGenetics
Wilhelm Ludvig Johannsen (1857-1927)
By: B. R. Erick Peirson
| Published: Nov 16, 2012
Wilhelm Ludvig Johannsen studied plants and helped found the field of genetics, contributing methods and concepts to the study of heredity around the…
GeneticsHeredityPhenotypeGenotype-environment interactionEvolution