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In 1931 embryologist and historian Joseph Needham published a well-received three-volume treatise titled Chemical Embryology. The first four chapters…
LiteratureNeedham, Joseph, 1900-1995PublicationshistoryMitochondrial DNA (mtDNA) is located outside the nucleus in the liquid portion of the cell (cytoplasm) inside cellular organelles called Mitochondria…
Mitochondrial DNAMitochondriaMitochondrial DisordersMitochondrial pathologyMitochondrial DNA--AbnormalitiesIn 1904, physician William Henry Walling published Sexology, a family medicine reference book. In his book, Walling proposed that his guidance would…
LiteratureMasturbationCoitus interruptusSexSexologyZhang Lizhu is a Chinese gynecologist and researcher. For most of her career, she worked in the Peking Medical College Third Hospital, renamed in…
PeopleReproductionBiographyFertilizationThe Assisted Human Reproduction Act (AHR Act) is a piece of federal legislation passed by the Parliament of Canada. The Act came into force on 29…
LawReproductive technologyFertilization in vitro, Human--Law and legislationMedicine--Research--Law and legislationBiomedical EthicsAristotle's On the Generation of Animals is referred to in Latin as De Generatione animalium. As with many of Aristotle's writings, the exact date of…
LiteratureReproductionPublicationsphilosophyAlec John Jeffreys created a process called DNA fingerprinting in the UK during the twentieth century. For DNA fingerprinting, technicians identify a…
DNA fingerprintingForensic sciencesForensic AnthropologyMicrosatellites (Genetics)Exons (Genetics)In 2005, Helen O’Connell and colleagues published “Anatomy of the Clitoris,” a review article, in The Journal of Urology. The article was one of the…
Female orgasmGenital Organs, FemaleGenitalia, FemaleMargaret Higgins Sanger advocated for birth control in the United States and Europe during the late nineteenth and early twentieth centuries.…
Planned Parenthood Federation of AmericaBirth ControlContraceptionReproductive RightsArizona