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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
“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
"The linear arrangement of six sex-linked factors in drosophila, as shown by their mode of association” (1913), by Alfred Henry Sturtevant
By: Kevin Gleason
| Published: May 22, 2017
In 1913, Alfred Henry Sturtevant published the results of experiments in which he showed how genes are arranged along a chromosome. Sturtevant…
DrosophilaHeredityInheritance of acquired charactersColumbia University--Graduate studentsMutation
Julia Clifford Lathrop (1858–1932)
By: Katherine Madgett
| Published: May 22, 2017
Julia Clifford Lathrop was an activist and social reformer in the late nineteenth to early twentieth centuries and the first chief of the United…
Lathrop, Julia Clifford, 1858-1932United States. Children's BureauPrenatal care--Law and legislationMaternal and infant welfare--United StatesWomen's health services--United States
Alfred Henry Sturtevant (1891–1970)
By: Kevin Gleason
| Published: May 20, 2017
Alfred Henry Sturtevant studied heredity in fruit flies in the US throughout the twentieth century. From 1910 to 1928, Sturtevant worked in Thomas…
DrosophilaHeredityInheritance of acquired charactersColumbia University--Graduate studentsMutation
Lydia Pinkham’s Vegetable Compound (1873-1906)
By: Rainey Horwitz
| Published: May 20, 2017
First marketed in the US 1875, Lydia Pinkham’s Vegetable Compound was an herbal medicine used by women to relieve menstrual discomfort and menopausal…
TechnologyReproductive HealthPatent MedicinesHerbs--Therapeutic useFertility
Lydia Estes Pinkham (1819–1883)
By: Rainey Horwitz
| Published: May 20, 2017
Lydia Estes Pinkham invented and sold Lydia Pinkham’s Vegetable Compound, a medicinal tonic used to treat menstrual discomfort and promote female…
Reproductive HealthPatent MedicinesHerbs--Therapeutic useFertilityAdvertising
Calvin Blackman Bridges (1889-1938)
By: Kevin Gleason
| Published: May 19, 2017
Calvin Blackman Bridges studied chromosomes and heredity in the US throughout the early twentieth century. Bridges performed research with Thomas…
DrosophilaHeredityInheritance of acquired charactersColumbia University--Graduate studentsMutation
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
Sheppard-Towner Maternity and Infancy Protection Act (1921)
By: Katherine Madgett
| Published: May 18, 2017
In November 1921, US Congress passed the National Maternity and Infancy Protection Act, also called the Sheppard-Towner Act. The Act provided federal…
LawPrenatal care--Law and legislationMaternal and infant welfare--United StatesPregnancyBirth