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Hedgehog Signaling Pathway
By: Dorothy R. Haskett
| Published: Jul 30, 2015
The hedgehog signaling pathway is a mechanism that directs the development of embryonic cells in animals, from invertebrates to vertebrates. The…
EmbryologyEmbryosWieschaus, Eric F.Cellular signal transductionDrosophila melanogaster
Frank Rattray Lillie's Study of Freemartins (1914-1920)
By: Mary Drago
| Published: Mar 14, 2014
Frank Rattray Lillie's research on freemartins from 1914 to 1920 in the US led to the theory that hormones partly caused for sex differentiation in…
Lillie, Frank Rattray, 1870-1947Intersexuality in animalsFreemartinismHormonesExperiments
“Annual Research Review: Prenatal Stress and the Origins of Psychopathology: An Evolutionary Perspective” (2011), by Vivette Glover
By: Carrie Keller
| Published: May 02, 2020
In 2011, fetal researcher Vivette Glover published “Annual Research Review: Prenatal Stress and the Origins of Psychopathology: An Evolutionary…
LiteratureStress in adolescenceStress in youthPsychological StressPregnancy
Robert Geoffrey Edwards (1925-2013)
By: Samuel Philbrick
| Published: Jun 20, 2011
Robert Geoffrey Edwards worked with Patrick Christopher Steptoe to develop in-vitro fertilization (IVF) techniques during the 1960s and 1970s in the…
PeopleFertilization in VitroReproductionBiographyFertilization
"Experiments in Plant Hybridization" (1866), by Johann Gregor Mendel
By: Amanda Andrei
| Published: Sep 04, 2013
During the mid-nineteenth century, Johann Gregor Mendel experimented with pea plants to develop a theory of inheritance. In 1843, while a monk in the…
GeneticsPeasLegumesPhenotypePlant breeding
Alejandro Sánchez Alvarado (1964- )
By: Mary E. Sunderland
| Published: Jun 10, 2010
Alejandro Sánchez Alvarado is a Professor of Neurobiology and Anatomy at the University of Utah School of Medicine and is also a Howard Hughes…
PeopleSánchez Alvarado, AlejandroRegenerationBiography
David Phillip Vetter (1971–1984)
By: Maggie Zhou
| Published: Aug 01, 2024
David Phillip Vetter was born with X-linked severe combined immunodeficiency disorder, or X-SCID, and spent most of his life in an isolated sterile…
X-Linked Combined Immunodeficiency DiseasesX-Linked SCIDSevere Combined ImmunodeficiencyBone Marrow--TransplantationAutoimmune Diseases
The Passing of the Great Race; or The Racial Basis of European History (1916), by Madison Grant
By: Aliya R. Hoff
| Published: Jul 12, 2021
In 1916, eugenicist Madison Grant published the book The Passing of the Great Race; or The Racial Basis of European History, hereafter The Passing of…
LiteratureEugenicsNuremberg War Crime Trials, Nuremberg, Germany, 1946-1949Involuntary sterilization--Law and legislationInterracial marriage--United States
Mitochondrial Diseases in Humans
By: Dorothy R. Haskett
| Published: Jul 11, 2014
Mitochondrial diseases in humans result when the small organelles called mitochondria, which exist in all human cells, fail to function normally. The…
Mitochondrial pathologyMitochondriaCell organellesCell nuclei--TransplantationReproductive technology