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"Experiments on Embryonic Induction III. A Note on Inductions by Chick Primitive Streak Transplanted to the Rabbit Embryo" (1934), by Conrad Hal Waddington
By: Adam R. Navis
| Published: Oct 30, 2007
Conrad Hal Waddington's "Experiments on Embryonic Induction III," published in 1934 in the Journal of Experimental Biology, describes the discovery…
Waddington, C. H. (Conrad Hal), 1905-1975EmbryosCell differentiationEmbryologyChickens--Embryos
Retinoids As Teratogens
By: Chanapa Tantibanchachai
| Published: Feb 28, 2014
Vitamin A (retinol) is an essential vitamin in the daily functioning of human beings that helps regulate cellular differentiation of epithelial…
RetinoidsVitamin A in the bodyTeratogenicity testingAbnormalities, HumanTeratogenic agents
J. B. v. M. B. (2001)
By: Jennifer E. Chapman
| Published: Nov 17, 2013
In 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 VitroPregnancyEmbryos
Litowitz v. Litowitz (2002)
By: Mark Zhang, Jennifer E. Chapman
| Published: Dec 02, 2013
In a dispute over the allocation of cryopreserved preembryos, the Supreme Court of Washington resolved the case of David J. Litowitz v. Becky M.…
LawFrozen human embryosFertilization in VitroEmbryosPregnancy
The Role of the Notch Signaling Pathway in Myogenesis
By: Justin M. Wolter
| Published: Jul 26, 2013
Among other functions, the Notch signaling pathway forestalls the process of myogenesis in animals. The Notch signaling pathway is a pathway in…
MyogenesisNotch genesNotch ProteinsMusclesMyoblasts
In re Marriage of Witten (2003)
By:
| Published: Jan 22, 2014
In re Marriage of Witten, decided by the Iowa Supreme Court in 2003, held that neither Tamera nor Arthur (Trip) Witten could use or destroy several…
LawFrozen human embryosFertilization in VitroEmbryosPregnancy
Robert Lanza (1956- )
By: Christopher Rojas
| Published: Feb 11, 2015
During the twentieth and twenty-first centuries, Robert Paul Lanza studied embryonic stem cells, tissues, and endangered species as chief scientific…
Advanced Cell Technology (Firm)BantengCloningEmbryosEmbryonic Stem Cells
Dizhou Tong (1902-1979)
By: Yawen Zou
| Published: Feb 18, 2014
Dizhou Tong, also called Ti Chou Tung, studied marine animals and helped introduce and organize experimental embryology in China during the twentieth…
Marine BiologyCell nuclei--TransplantationEmbryology, ExperimentalDevelopmental BiologyEmbryos
Mesoderm
By: Kate MacCord
| Published: Nov 26, 2013
Mesoderm 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 differentiationCellsTissues
The Southern Gastric-Brooding Frog
By: Christopher Rojas
| Published: Jan 26, 2015
The Southern Gastric-Brooding Frog (Rheobatrachus silus) was an aquatic frog that lived in south-east Australia. In 2002, the International Union…
Sexual behavior in animalsReproductive BehaviorExtinction (Biology)Extinct animalsCloning