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William Bateson (1861-1926)
By: Samantha Hauserman
| Published: Jan 28, 2014
At the turn of the twentieth century, William Bateson studied organismal variation and heredity of traits within the framework of evolutionary theory…
GeneticsHeredityMendel, Gregor, 1822-1884EvolutionEmbryology
Susumu Ohno (1928–2000)
By: Devangana Shah
| Published: Jun 03, 2025
Susumu Ohno studied chromosome structure and evolution during the twentieth century in the United States. Ohno was one of the first researchers to…
Sequence Analysis, DNAGenes, DuplicateGene DuplicationBarr BodiesBiological Evolution
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
"Evolution and
Tinkering" (1977), by Francois Jacob
By: Valerie Racine
| Published: Oct 24, 2014
In his essay Evolution and Tinkering, published in Science in 1977, Francois Jacob argued that a common analogy between the process of evolution by…
LiteratureInstitut Pasteur (Paris, France)OperonsGenetic regulationNobel Prizes
David Starr Jordan (1851-1931)
By: Jill Briggs
| Published: Jun 26, 2013
David Starr Jordan studied fish and promoted eugenics in the US during the late nineteenth and early twentieth centuries. In his work, he embraced…
EugenicsEvolutionEmbryosEmbryologyHeredity
"Testing the Kin Selection Theory: Who Controls the Investments?" from The Ants (1990), by Bert Hölldobler and Edward O. Wilson
By: Kelle Dhein
| Published: Apr 18, 2017
In “Testing the Kin Selection Theory: Who Controls the Investments?” Bert Hölldobler and Edward Osborne Wilson discussed the predictive power of kin…
LiteratureAntsAnimal behaviorReproductionNatural selection
Charles Darwin's Theory of Pangenesis
By: Yawen Zou
| Published: Jul 20, 2014
In 1868 in England, Charles Darwin proposed his pangenesis theory to describe the units of inheritance between parents and offspring and the…
HeredityDarwin, Charles, 1809-1882ReproductionEvolutionNatural selection