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Since the 1950s, scientists have developed interspecies blastocysts in laboratory settings, but not until the 1990s did proposals emerge to engineer…
BlastocystDiseasesbioethicsTadpoleCell nuclei--TransplantationWhen cells-but not DNA-from two or more genetically distinct individuals combine to form a new individual, the result is called a chimera. Though…
ContextChimerismEmbryosEmbryonic Stem CellsMosaicismIn 2007, the Human Fertilisation and Embryology Authority in London, UK, published Hybrids and Chimeras: A Report on the Findings of the Consultation…
LiteratureChimerismHuman reproductive technologyHuman CloningEmbryonic Stem CellsThe Golgi staining technique, also called the black reaction after the stain's color, was developed in the 1870s and 1880s in Italy to make brain…
TechnologyGolgi, Camillo, 1843-1926Stains and staining (Microscopy)NeuronsMicroscope slidesTo educate its citizens about research into chimeras made from human and non-human animal cells, the United Kingdom's Human Fertilisation Embryology…
LiteratureChimerismHuman reproductive technologyHuman CloningFertilization in vitro, HumanIn 1991, the United Kingdom established the Human Fertilisation and Embryology Authority (HFEA) as a response to technologies that used human embryos…
OrganizationEmbryologyReproductive HealthHuman reproductive technologyWarnock, Mary, 1808-1900Santiago Felipe Ramon y Cajal investigated brains in the nineteenth and twentieth centuries in Spain. He identified and individuated many components…
NeuronsChickens--EmbryosAxons