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Alfred Day Hershey (1908–1997)
By: Victoria Hernandez
| Published: Apr 29, 2019
During the twentieth century in the United States, Alfred Day Hershey studied phages, or viruses that infect bacteria, and experimentally verified…
Hershey, A. D. (Alfred Day), 1908-Bacteriophage lambdaPhage lambdaBacteriophages--GeneticsBacteriophages
The Debate over DNA Replication Before the Meselson-Stahl Experiment (1953–1957)
By: Victoria Hernandez
| Published: Jan 03, 2018
Between 1953 and 1957, before the Meselson-Stahl experiment verified semi-conservative replication of DNA, scientists debated how DNA replicated. In…
ChromosomesCalifornia Institute of TechnologyCold Spring Harbor LaboratoryDNA Replication
James David Ebert (1921-2001)
By: Sheraden Seward
| Published: Sep 12, 2008
James David Ebert studied the developmental processes of chicks and of viruses in the US during the twentieth century. He also helped build and grow…
PeopleBiographyCarnegie Institution of WashingtonLaboratories
“Knowledge, Attitudes, and Practices of Health Personnel of Maternities in the Prevention of Mother-to-Child Transmission of HIV...” (2018), by Elie Nkwabong, Romuald Meboulou Nguel, Nelly Kamgaing, and Anne Sylvie Keddi Jippe
By: Alexis Darby, Sierra Hope Jones
| Published: Apr 06, 2021
In 2018, researchers Elie Nkwabong, Romuald Meboulou Nguel, Nelly Kamgaing, and Anne Sylvie Keddi Jippe published, “Knowledge, Attitudes, and…
LiteratureHIV-positive womenHIV-positive childrenHIV (Viruses)HIV infections
Lennart Nilsson (1922- )
By: Olivia Conley
| Published: Jun 24, 2010
Lennart Nilsson is a world-renowned photojournalist recognized for his exploratory images of the inside of the human body. Throughout his career,…
PeopleReproductionBiographyHuman DevelopmentMorphology
"The Limited In Vitro Lifetime of Human Diploid Cell Strains" (1964), by Leonard Hayflick
By: Zane Bartlett
| Published: Feb 11, 2017
Leonard Hayflick in the US during the early 1960s showed that normal populations of embryonic cells divide a finite number of times. He published his…
Cell DivisionBiology, ExperimentalCells, CulturedEmbryo Culture Techniquescell aging
The Hershey-Chase Experiments (1952), by Alfred Hershey and Martha Chase
By: Victoria Hernandez
| Published: Jun 23, 2019
In 1951 and 1952, Alfred Hershey and Martha Chase conducted a series of experiments at the Carnegie Institute of Washington in Cold Spring Harbor,…
BacteriophagesDNACold Spring Harbor LaboratoryProtein PrecursorsAmino Acid Sequence
Cervarix HPV Vaccination Series
By: Grace Kim, Alexis Darby
| Published: Aug 20, 2020
In 2011, United Kingdom pharmaceutical company GlaxoSmithKline released Cervarix, a vaccination series protecting girls and women from two strains of…
TechnologyCervical CancerCancer VaccineCancer of the CervixVaccines
Teratogens
By: Chanapa Tantibanchachai
| Published: Jan 22, 2014
Teratogens are substances that may produce physical or functional defects in the human embryo or fetus after the pregnant woman is exposed to the…
Abnormalities, HumanFetusPregnancyTeratogenicity testingEmbryos
HeLa Cell Line
By: Rohini Nott
| Published: Sep 18, 2020
The HeLa cell line was the first immortal human cell line that George Otto Gey, Margaret Gey, and Mary Kucibek first isolated from Henrietta Lacks…
HeLa CellsContinuous cell linesResearch EthicsInformed consent (Medical law)Cervix uteri--Cancer