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George McDonald Church (1954- )
By: Risa Aria Schnebly, Christopher Rojas
| Published: Aug 12, 2015
George McDonald Church studied DNA from living and from extinct species in the US during the twentieth and twenty-first centuries. Church helped to…
DNA SequenceNucleotide sequenceGenesGenomesGenetics
Hedgehog Signaling Pathway
By: Dorothy R. Haskett
| Published: Jul 30, 2015
The hedgehog signaling pathway is a mechanism that directs the development of embryonic cells in animals, from invertebrates to vertebrates. The…
EmbryologyEmbryosWieschaus, Eric F.Cellular signal transductionDrosophila melanogaster
Assisted Human Reproduction Act (2004)
By: Kathleen Hammond
| Published: Jul 30, 2015
The 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 Ethics
Friedrich Tiedemann (1781-1861)
By: Jonathon LaTourelle
| Published: Jul 07, 2015
Friedrich Tiedemann studied the anatomy of humans and animals in the nineteenth century in Germany. He published on zoological subjects, on the heart…
BrainAnatomy, ComparativeEmbryologyFetal braindevelopment
The Cell in Development and Inheritance (1900), by Edmund Beecher Wilson
By: Jane Maienschein, Abhinav Mishra
| Published: Jun 18, 2015
The Cell in Development and Inheritance, by Edmund Beecher Wilson, provided a textbook introduction to cell biology for generations of biologists in…
LiteratureCell organellesMitosisMeiosisCell Proliferation
Charles Robert Cantor (1942- )
By: Alexis Abboud
| Published: Jun 11, 2015
Charles Robert Cantor helped sequence the human genome, and he developed methods to non-invasively determine the genes in human fetuses. Cantor…
Human Genome ProjectDNAfetal developmentFetusEmbryos
"Human Toxoplasmosis: Occurrence in Infants as an Encephalomyelitis Verification of Transmission to Animals" (1939), by Abner Wolf et al.
By: Jesse Potestas
| Published: Jun 11, 2015
In a series of experiments during mid 1930s, a team of researchers in New York helped establish that bacteria of the species Toxoplasma gondii can…
ToxoplasmosisColumbia UniversityCongenital ToxoplasmosisEncephalomyelitisInfection
Induced Pluripotent Stem Cell Experiments by Kazutoshi Takahashi and Shinya Yamanaka in 2006 and 2007
By: Zane Bartlett
| Published: Jun 01, 2015
In 2006, Kazutoshi Takahashi and Shinya Yamanaka reprogrammed mice fibroblast cells, which can produce only other fibroblast cells, to become…
Stem cells--ResearchStem CellsNobel PrizesEmbryologyDevelopmental Biology
Petr Alekseevich Kropotkin (1842-1921)
By: Jonathan LaTourelle
| Published: Jun 01, 2015
Petr Kropotkin proposed the theory of Pleistocene ice age, alternative theories of evolution based on embryology, and he advocated anarchist and…
EvolutionHeredityInheritance of acquired charactersPaleogeography--PleistoceneAnarchism
The Y-Chromosome in Animals
By: Dorothy R. Haskett
| Published: May 28, 2015
The Y-chromosome is one of a pair of chromosomes that determine the genetic sex of individuals in mammals, some insects, and some plants. In the…
Y ChromosomeSex ChromosomesEmbryosDNAChromosomes