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In nineteenth century Great Britain, Thomas Henry Huxley proposed connections between the development of organisms and their evolutionary histories,…
PeopleDarwin, Charles, 1809-1882EvolutionpaleontologyEmbryologyMesoderm is one of the three germ layers, groups of cells that interact early during the embryonic life of animals and from which organs and tissues…
MesodermGastrulationCell differentiationCellsTissuesRosalind Elsie Franklin worked with X-ray crystallography at King's College London, UK, and she helped determine the helical structure of DNA in the…
PeopleDNAX-Ray CrystallographyMolecular geneticsMolecular BiologyIn 2001, the Supreme Court of New Jersey decided a dispute between a divorced couple over cryopreserved preembryos created through in vitro…
LawFrozen human embryosFertilization in VitroPregnancyEmbryosEndoderm is one of the germ layers-- aggregates of cells that organize early during embryonic life and from which all organs and tissues develop.…
GastrulationEmbryosEmbryologyCellsTissuesIn A.Z. v. B.Z. (2000), the Supreme Judicial Court of Massachusetts in Boston, Massachusetts, affirmed a lower courtÕs decision, ruling that…
LawFrozen human embryosFertilization in VitroPregnancyEmbryosSolomon A. Berson helped develop the radioimmunoassay (RIA) technique in the US during the twentieth century. Berson made many scientific…
ImmunoassayRadioimmunoassayIsotopesPhysiologyNuclear MedicineFrancis Harry Compton Crick, who co-discovered the structure of deoxyribonucleic acid (DNA) in 1953 in Cambridge, England, also developed The Central…
DNAChromosomesNucleotide sequenceNucleic AcidsMolecular BiologyFarmers have long relied on genetic diversity to breed new crops, but in the early 1900s scientists began to study the importance of plant genetic…
ContextGermplasm resources, PlantGermplasm resources, Plant--StorageAgrobiodiversityCropsIn Maureen Kass v. Steven Kass (1998), the Court of Appeals of New York in Albany, New York, ruled that the state should generally consider IVF…
LawFrozen human embryosFertilization in VitroInformed consent (Medical law)Surrogate mothers