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In 1935, George Beadle and Boris Ephrussi developed a technique to transplant optic discs between fruit fly larvae.
Fruit-fliesImaginal DisksGeneticsdevelopmentMetamorphosis, BiologicalNeurospora crassa is a red mold that scientists use to study genetics. N.
Neurospora crassaMicrobiologyMicroscopyCulture MediaMoldsIn the 1930s, George Beadle and Boris Ephrussi discovered factors that affect eye colors in developing fruit flies.
Fruit-fliesImaginal DisksGeneticsdevelopmentMetamorphosis, BiologicalHans Asperger studied mental abnormalities in children in Vienna, Austria, in the early twentieth century. Asperger was one of the early…
Asperger's syndromeMental HealthPsychiatryChild psychiatryWorld Health OrganizationIn 1942, the United States Supreme Court Case of Skinner v. Oklahoma ruled that states could not legally sterilize those inmates of prisons deemed…
LawCompulsory SterilizationSupreme Court DecisionsEugenicsInvoluntary SterilizationAristotle studied developing organisms, among other things, in ancient Greece, and his writings shaped Western philosophy and natural science for…
GreecedevelopmentphilosophyPlatoPhysicsJulia Barlow Platt studied neural crests in animal embryos and became involved in politics in the US during the nineteenth and twentieth centuries.…
DogfishNeural CrestNervous SystemCartilageGerm LayersThe hedgehog signaling pathway is a mechanism that regulates cell growth and differentiation during embryonic development, called embryogenesis, in…
Drosophila melanogasterCyclopiaGenetic regulationZebra danioGenesMary Coffin Ware Dennett advocated for social reform in the United States in the early twentieth century, particularly regarding sex education and…
Obscenity (Law)Obscenity (Law)--United StatesSex EducationReproductive HealthReproductive health--Law and legislationEstrogen is the primary sex hormone in women and it functions during the reproductive menstrual cycle. Women have three major types of estrogen:…
Menstrual CycleOral contraceptivesEstrogenEstradiolEstrone