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George Wells Beadle (1903-1989)

By: Divyash Chhetri | Published: Mar 14, 2014

George Wells Beadle studied corn, fruit flies, and funguses in the US during the twentieth century. These studies helped Beadle earn the 1958 Nobel…

Beadle, George Wells, 1903-1989Genetics

Tay-Sachs Disease

By: Kristin Kelley | Published: Oct 29, 2010

In 1881 British opthalmologist Warren Tay made an unusual observation. He reported a cherry-red spot on the retina of a one-year-old patient, a…

Tay-Sachs DiseaseCongenital DisordersHeredity
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Mary Frances Lyon (1925–2014)

By: Devangana Shah | Published: Jul 04, 2025

Mary Frances Lyon studied gene expression and developed the theory of X-chromosome inactivation, also called Lyonization, during the twentieth…

Gene ExpressionX Chromosome InactivationLyon HypothesisLyonizationMutation

Diana W. Bianchi

By: Alexis Abboud | Published: Jun 23, 2017

Diana W. Bianchi studied the medical treatment of premature and newborn infants in the US during the twentieth and twenty-first centuries. Bianchi…

Prenatal DiagnosisGenetics

"Male Development of Chromosomally Female Mice Transgenic for Sry gene" (1991), by Peter Koopman, et al.

By: Troy Cox | Published: Jan 28, 2014

Early 1990s research conducted by Peter Koopman, John Gubbay, Nigel Vivian, Peter Goodfellow, and Robin Lovell-Badge, showed that chromosomally…

Y ChromosomeTestisEmbryosChromosomesSex Chromosomes

San Diego Zoo Institute for Conservation Research

By: Karen Love | Published: Jun 12, 2017

The San Diego Zoo Institute for Conservation Research (SDZICR) in San Diego, California, is a research organization that works to generate, use, and…

OrganizationpreservationGeneticsEndangered SpeciesDNA

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

"Altruism and the Origin of the Worker Caste" from The Ants (1990), by Bert Hölldobler and Edward Osborne Wilson

By: Kelle Dhein | Published: Jul 24, 2017

In 'Altruism and the Origin of the Worker Caste,' Bert Hölldobler and Edward Osborne Wilson explore the evolutionary origins of worker ants. '…

LiteratureAntsInsect societiesKin selection (Evolution)Evolution

Max Ludwig Henning Delbruck (1906–1981)

By: Victoria Hernandez | Published: Sep 20, 2017

Max Ludwig Henning Delbrick applied his knowledge of theoretical physics to biological systems such as bacterial viruses called bacteriophages, or…

Meselson, MatthewUniversity of RochesterDNA ReplicationBacteriophagesEscherichia coli

Dennis Lo (1963- )

By: Alexis Abboud | Published: Nov 04, 2014

Dennis Lo, also called Yuk Ming Dennis Lo, is a professor at the Chinese University of Hong Kong in Hong Kong, China. In 1997, Lo discovered fetal…

genetic testingHuman chromosome abnormalities--DiagnosisPrenatal DiagnosisAmniocentesisChorionic Villus Sampling