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Calvin Bridges’ Experiments on Nondisjunction as Evidence for the Chromosome Theory of Heredity (1913-1916)
By: Kevin Gleason
| Published: May 18, 2017
From 1913 to 1916, Calvin Bridges performed experiments that indicated genes are found on chromosomes. His experiments were a part of his doctoral…
DrosophilaHeredityInheritance of acquired charactersColumbia University--Graduate studentsMutation
Beadle and Ephrussi's Transplantation Technique for Drosophila
By: Divyash Chhetri
| Published: Jun 29, 2014
Boris Ephrussi and George Wells Beadle developed a transplantation technique on flies, Drosophila melanogaster, which they described in their 1936…
TechnologyTissue ExtractsGenesTransplantation of organs, tissues, etc.Tissue Transplantation
Walter Jakob Gehring (1939-2014)
By: Joe Brinkman
| Published: Dec 22, 2014
Walter Jakob Gehring discovered the homeobox, a DNA segment found in a specific cluster of genes that determine the body plan of animals, plants, and…
Homeobox genesDrosophilaGeneticsGenesGenes, Homeobox
Victor Jollos (1887-1941)
By: B. R. Erick Peirson
| Published: Sep 16, 2014
Victor Jollos studied fruit flies and microorganisms in Europe and the US, and he introduced the concept of Dauermodifikationen in the early 1900s.…
ParameciumDrosophilaHeredityProtistaprotozoology
Theophilus Shickel
Painter (1889-1969)
By: Dorothy Haskett
| Published: Nov 22, 2014
Theophilus Shickel Painter studied the structure and function of chromosomes in the US during in the early to mid-twentieth century. Painter worked…
ChromosomesKaryotypesSex ChromosomesGeneticsLinkage (Genetics)
“Sex Limited Inheritance in Drosophila” (1910), by Thomas Hunt Morgan
By: Kevin Gleason
| Published: May 22, 2017
In 1910, Thomas Hunt Morgan performed an experiment at Columbia University, in New York City, New York, that helped identify the role chromosomes…
DrosophilaHeredityInheritance of acquired charactersColumbia University--Graduate studentsMutation