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Richard Woltereck was a German zoologist and hydrobiologist who studied aquatic animals and extended the concept of Reaktionsnorm (norm of reaction)…
PeopleEvolutionHeredityEmbryologyAquatic animalsTwin-to-Twin Transfusion Syndrome (TTTS) is a rare placental disease that can occur at any time during pregnancy involving identical twins. TTTS…
Fetofetal TransfusionReproductionFetusCongenital DisordersHuman DevelopmentPrenatal exposure to alcohol (ethanol) results in a continuum of physical, neurological, behavioral, and learning defects collectively grouped under…
fetal alcohol syndromeReproductionHuman DevelopmentEstrogen plays a key role in the regulation of gene transcription. This is accomplished by its ability to act as a ligand and to bind to specific…
DiethylstilbestrolEstrogenHuman DevelopmentThe National Embryo Donation Center (NEDC) is a non-profit organization that was established in 2002 in Knoxville, Tennessee. The organization is…
OrganizationFertilityOrganizationsReproductionIn a dispute over frozen embryos during a divorce case, the court decided the wife's fundamental right to not procreate mandated destruction of the…
LawFertilization in VitroReproductionFertilizationbioethicsThe Report of the Committee of Inquiry into Human Fertilisation and Embryology, commonly called the Warnock Report after the chair of the committee…
LiteratureFertilityFertilization in vitro, HumanReproductive technologyEmbryo transplantationHydrocephalus is a congenital or acquired disorder characterized by the abnormal accumulation of cerebrospinal fluid within the cavities of the brain…
HydrocephalusDandy, Walter Edward, 1886-1946Arnold-Chiari DeformityBrain--DiseasesInfants--DiseasesOntogeny and Phylogeny is a book published in 1977, in which the author Stephen J. Gould, who worked in the US, tells a history of the theory of…
LiteratureEvolutionOntogenyEmbryologyMeckel, J. F. (Johann Friedrich), 1781-1833In 1868 in England, Charles Darwin proposed his pangenesis theory to describe the units of inheritance between parents and offspring and the…
HeredityDarwin, Charles, 1809-1882ReproductionEvolutionNatural selection