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In 1969, Roy J. Britten and Eric H. Davidson published Gene Regulation for Higher Cells: A Theory, in Science. A Theory proposes a minimal model…
LiteratureGenetic regulationCell differentiationEvolutionGenesVasectomy is one of few widely available methods of contraception for people with male reproductive systems aside from condoms, abstinence, and…
ContraceptionBirth ControlVasectomyEugenicsVasovasostomyWhen scientists discovered a 3.3 million-year-old skeleton of a child of the human lineage (hominin) in 2000, in the village of Hadar, Ethiopia, they…
Human remains (Archaeology)Prehistoric peoplesAntiquities, PrehistoricArcheologyAnthropology, PhysicalSt. George Jackson Mivart studied animals and worked in England during the nineteenth century. He also proposed a theory of organismal development…
EvolutionRoy John Britten studied DNA sequences in the US in the second half of the twentieth century, and he helped discover repetitive elements in DNA…
DNAGenomesCalifornia Institute of TechnologyGenetic regulationMiceMaking Visible Embryos is a 2008 online exhibition of embryos authored and designed by Tatjana Buklijaz and Nick Hopwood who work in the Department…
OrganizationOrganizationsEducationDuring the 1870s and early 1880s, the British morphologist Francis Maitland Balfour contributed in important ways to the budding field of…
BiographyEvolutionEarly in the process of development, vertebrate embryos develop a fold on the neural plate where the neural and epidermal ectoderms meet, called the…
VertebratesdevelopmentGerm LayersNeural CrestNeural Crest CellsAt the turn of the twentieth century, William Bateson studied organismal variation and heredity of traits within the framework of evolutionary theory…
GeneticsHeredityMendel, Gregor, 1822-1884EvolutionEmbryologyIn 2008 researchers Daniel Warner and Richard Shine tested the Charnov-Bull model by conducting experiments on the Jacky dragon (Amphibolurus…
ExperimentsSex DifferentiationReproductionAdaptationfetal development