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Somites are blocks of mesoderm that are located on either side of the neural tube in the developing vertebrate embryo. Somites are precursor…
Somatic cellsSomitesRicardo Hector Asch was born 26 October 1947 in Buenos Aires, Argentina, to a lawyer and French professor, Bertha, and a doctor and professor of…
PeopleFertilityethicsBiographyConrad Hal Waddington's "Experiments on Embryonic Induction III," published in 1934 in the Journal of Experimental Biology, describes the discovery…
Waddington, C. H. (Conrad Hal), 1905-1975EmbryosCell differentiationEmbryologyChickens--EmbryosAcyclovir is an antiviral medication that scientists developed in the twentieth century to treat herpes, a disease caused by the viruses herpes…
AcyclovirAntiherpes CremeZoviraxGenital HerpesHerpes Simplex Virus 1At the turn of the twentieth century, Edmund B. Wilson performed experiments to show where germinal matter was located in molluscs. At Columbia…
Wilson, Edmund B. (Edmund Beecher), 1856-1939EmbryosEmbryologyDevelopmental BiologyLarvaePurkinje cells, also called Purkinje neurons, are neurons in vertebrate animals located in the cerebellar cortex of the brain. Purkinje cell bodies…
Purkinje CellsCerebellar CortexcerebellumBrain StemRichard 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 Development