Filter my results
Search
Displaying 51 - 60 of 646
Embryonic Sex Differentiation and Sex Hormones (1947), by Carl R. Moore
By: Mary Drago
| Published: May 03, 2014
In 1947, Carl Richard Moore, a researcher at the University of Chicago, in Chicago, Illinois, wrote Embryonic Sex Differentiation and Sex Hormones,…
LiteratureEndocrinologyHormones, SexGonadal Steroid HormonesFreemartinism
Lysogenic Bacteria as an Experimental Model at the Pasteur Institute (1915-1965)
By: Valerie Racine
| Published: Oct 10, 2014
Lysogenic bacteria, or virus-infected bacteria, were the primary experimental models used by scientists working in the laboratories of the Pasteur…
ContextInstitut Pasteur (Paris, France)BacteriaEscherichia coliMonod, Jacques
The Aschheim-Zondek Test for Pregnancy
By: Kristin Kelley
| Published: Sep 12, 2010
Throughout history many different methods have been devised for the early detection of pregnancy. From the time of the Ancient Egyptians, inspection…
Pregnancy TestsReproductionFertility
Matthew Stanley Meselson (1930– )
By: Victoria Hernandez
| Published: May 23, 2017
Matthew Stanley Meselson conducted DNA and RNA research in the US during the twentieth and twenty-first centuries. He also influenced US policy…
Holmes, Frederic LawrenceMeselson, MatthewStahl, Franklin W.Watson, James D., 1928-Crick, Francis, 1916-2004
Casti Connubii (1930), by Pope Pius XI
By: Katherine Brind'Amour
| Published: Jan 20, 2009
"Casti Connubii," a papal encyclical given by Pope Pius XI on 31 December 1930, served primarily as a reaffirmation and expansion of the issues…
LiteraturereligionCatholicismPopesContraception
The Cell in Development and Inheritance (1900), by Edmund Beecher Wilson
By: Jane Maienschein, Abhinav Mishra
| Published: Jun 18, 2015
The Cell in Development and Inheritance, by Edmund Beecher Wilson, provided a textbook introduction to cell biology for generations of biologists in…
LiteratureCell organellesMitosisMeiosisCell Proliferation
Carl Richard Moore (1892-1955)
By: Mary Drago
| Published: Feb 18, 2014
Carl Richard Moore was a professor and researcher at the University of Chicago in Chicago, Illinois who studied sex hormones in animals from 1916…
Moore, Carl R. (Carl Richard), 1892-1955Intersexuality in animalsIntersex peopleHormones, SexSex Differentiation
The Southern Gastric-Brooding Frog
By: Christopher Rojas
| Published: Jan 26, 2015
The Southern Gastric-Brooding Frog (Rheobatrachus silus) was an aquatic frog that lived in south-east Australia. In 2002, the International Union…
Sexual behavior in animalsReproductive BehaviorExtinction (Biology)Extinct animalsCloning
"Developmental Capacity of Nuclei Transplanted from Keratinized Skin Cells of Adult Frogs" (1975), by John Gurdon, Ronald Laskey, and O. Raymond Reeves
By: Sean Cohmer
| Published: Jun 14, 2011
In 1975 John Gurdon, Ronald Laskey, and O. Raymond Reeves published "Developmental Capacity of Nuclei Transplanted from Keratinized Skin Cells of…
Nuclear Transfer TechniquesExperimentsPublicationsFrogsNuclear Transplantation
Gomco Circumcision Clamp
By: Matthew Tontonoz
| Published: Aug 12, 2025
The Gomco circumcision clamp is a metal device that medical practitioners use to perform circumcision, or the removal of the foreskin of the penis.…
Circumcision, MaleMale circumcisionForeskinPenisGlans Penis