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William Thomas Astbury (1898–1961)
By: Victoria Hernandez
| Published: Jun 03, 2019
William Thomas Astbury studied the structures of fibrous materials, including fabrics, proteins, and deoxyribonucleic acid, or DNA, in England during…
DNAX-Ray CrystallographyX-ray crystallography--TechniqueNucleic AcidsDNA-protein interactions
The Shettles Method of Sex Selection
By: Alysse Blight
| Published: Apr 03, 2019
In the 1960s in the United States Landrum B. Shettles developed the Shettles method, which is a procedure for couples to use prior to and during an…
TechnologySex PreselectionSex PredeterminationFamily PlanningSex Chromosomes
Christopher Polge and Lionel Edward Aston Rowson’s Experiments on the Freezing of Bull Spermatozoa (1950–1952)
By: Bailey Renee
| Published: Dec 19, 2017
In 1952, researchers Christopher Polge and Lionel Edward Aston Rowson, who worked at the Animal Research Center in Cambridge, England, detailed…
GlycerinCryopreservationSpermatozoaMicroorganisms--CryopreservationExperiments
Christian Peeters and Bert Hölldobler's Experiments on Reproduction in Indian Jumping Ants (1991–1994)
By: Kelle Dhein
| Published: Mar 23, 2017
Between 1991 and 1994, Christian Peeters and Bert Hölldobler studied the reproductive behaviors of the Indian jumping ant (Harpegnathos saltator), a…
AntsPoneraInsectsWorkers (Insects)Queens (Insects)
Harald zur Hausen's Experiments on Human Papillomavirus Causing Cervical Cancer (1976–1987)
By: Grace Kim
| Published: Mar 09, 2017
From 1977 to 1987, Harald zur Hausen led a team of researchers across several institutions in Germany to investigate whether the human papillomavirus…
PapillomavirusesHuman Papilloma VirusHerpes simplex virusCervix uteri--CancerCervical Cancer
Edward Charles Dodds (1899-1973)
By: Alexis Abboud
| Published: Mar 06, 2017
Edward Charles Dodds researched the function and effects of natural and artificial hormones on the endocrine system in England during the twentieth…
Dodds, E. C. (Edward Charles), 1899-EndocrinologyEstrogenDiethylstilbestrolDiethylstilbestrol--Carcinogenicity
"On the Origin of Mitosing Cells" (1967), by Lynn Sagan
By: Dorothy Regan Haskett
| Published: Apr 15, 2014
On the Origin of Mitosing Cells by Lynn Sagan appeared in the March 1967 edition of the Journal of Theoretical Biology. At the time the article was…
LiteratureMitosisEndosymbiosisflagellasymbiosis
California Proposition 71 (2004)
By: Ceara O'Brien
| Published: Apr 03, 2014
The California Stem Cell Research and Cures Act, also called Proposition 71, was a ballot initiative proposed by California voters in 2004 to…
LawStem cells--Research--Religious aspects--ChristianityStem cells--Research--Moral and ethical aspectsEmbryonic stem cells--Research--Law and legislationEmbryo Research
Seed Collection and Plant Genetic Diversity, 1900-1979
By: Marci Baranski
| Published: Nov 01, 2013
Farmers have long relied on genetic diversity to breed new crops, but in the early 1900s scientists began to study the importance of plant genetic…
ContextGermplasm resources, PlantGermplasm resources, Plant--StorageAgrobiodiversityCrops
Human Betterment Foundation (1928-1942)
By: Jill Briggs
| Published: Jul 10, 2013
In 1928 Ezra Seymour Gosney founded the non-profit Human Betterment Foundation (HBF) in Pasadena, California to support the research and publication…
OrganizationCaliforniaInvoluntary SterilizationSterilization (Birth control)Human reproduction