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Embryogenesis is an intricate process that can easily be disrupted by means of teratogenic agents. Some of these agents target the embryonic period's…
ThalidomideHuman DevelopmentFetusThe French flag model represents how embryonic cells receive and respond to genetic information and subsequently differentiate into patterns. Created…
ModelsGeneticsIn 1962 the journal Acta Biotheoretica published the final work of the biologist Edward Stuart Russell, a full eight years after his death. Entitled…
LiteratureRussell, E. S. (Edward Stuart), 1887-1954Biological EvolutionPublicationsEvolutionAll cells that have a nucleus, including plant, animal, fungal cells, and most single-celled protists, also have mitochondria. Mitochondria are…
CellsCell organellesMitochondriaPlant mitochondriaEndosymbiosisIn 1980 Janet Rossant and William I. Frels published their paper, "Interspecific Chimeras in Mammals: Successful Production of Live Chimeras Between…
ChimeraExperimentsMiceFrank R. Lillie was born in Toronto, Canada, on 27 June 1870. His mother was Emily Ann Rattray and his father was George Waddell Little, an…
PeopleLillie, Frank Rattray, 1870-1947BiographyLaboratoriesCell LineageTo address the international Human Immunodeficiency Virus epidemic, the World Health Organization, or WHO, developed three drug treatment regimens…
HIV-positive personsHIV infectionsHIV-positive youthHIV-positive womenHIV-positive childrenTo address the international Human Immunodeficiency Virus epidemic, the World Health Organization, or WHO, developed three drug treatment regimens…
HIV-positive personsHIV infectionsHIV-positive youthHIV-positive womenHIV-positive childrenCornelia Isabella Bargmann studied the relationship between genes, neural circuits, and behavior in the roundworm Caenorhabditis elegans (C. elegans…
Drosophila melanogasterNeural circuitryNeurobiologyHER-2 geneHER-2 proteinHormone releasing intrauterine devices or hormonal IUDs are contraceptive devices placed in a woman’s uterus to prevent pregnancy by continuously…
TechnologyIntrauterine contraceptivesLevonorgestrel intrauterine contraceptivesCopper intrauterine contraceptivesProducts liability--Contraceptive drug implants