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Alan Mathison Turing was a British mathematician and computer scientist who lived in the early twentieth century. Among important contributions in…
PeopleMorphogenesisBiographyModelsEdwin Grant Conklin was born in Waldo, Ohio, on 24 November 1863 to parents Nancy Maria Hull and Dr. Abram V. Conklin. Conklin's family was very…
PeopleCell LineageBiographyCharles Otis Whitman was an extremely curious and driven researcher who was not content to limit himself to one field of expertise. Among the fields…
PeopleBiographyMorphologyLaboratoriesDavid Edwin Wildt developed and applied assisted reproductive technologies to conserve rare and endangered wildlife species in the US during the…
CheetahFertilization in VitroEmbryo transplantationReproductive technologyEndangered SpeciesIn 1934 a fourteen-day-old embryo was discovered during a postmortem examination and became famous for being the youngest known human embryo specimen…
ReproductionSpecimensHuman DevelopmentChorionic villus sampling (CVS) is a test used for prenatal diagnosis. Safe to perform at an earlier stage in pregnancy than amniocentesis, CVS is…
TechnologyChorionic Villus SamplingChorionic Villi SamplingReproductionMarcello Malpighi studied chick embryos with microscopes in Italy during the seventeenth century. Trained as a medical doctor, he was among the first…
MicroscopyHistologyChick EmbryoFranklin Paine Mall was born into a farming family in Belle Plaine, Iowa, on 28 September 1862. While he attended a local academy, an influential…
BiographyEducationIn the early 2000s, Manjong Han, Xiaodang Yang, Jennifer Farrington, and Ken Muneoka investigated how genes and proteins in fetal mice (Mus musculus…
Regeneration (Biology)MiceRegenerationHomeobox genesBone Morphogenetic ProteinsThe one gene-one enzyme hypothesis, proposed by George Wells Beadle in the US in 1941, is the theory that each gene directly produces a single enzyme…
Beadle, George Wells, 1903-1989GeneticsGenetics, ExperimentalDrosophila melanogaster