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Social Implications of Non-Invasive Blood Tests to Determine the Sex of Fetuses
By: Ceara O'Brien
| Published: Mar 23, 2014
By 2011, researchers in the US had established that non-invasive blood tests can accurately determine the gender of a human fetus as early as seven…
ContextDiagnostic sex determinationSex PreselectionFetusSex Determination Analysis
Lynn Petra Alexander Sagan Margulis (1938-2011)
By: Dorothy Regan Haskett
| Published: Mar 23, 2014
Lynn Petra Alexander Sagan Margulis was an American biologist, whose work in the mid-twentieth century focused on cells living together in a mutually…
Eukaryotic cellsMitosissymbiosisMitochondriaMicroorganisms--Evolution
George Wells Beadle (1903-1989)
By: Divyash Chhetri
| Published: Mar 14, 2014
George Wells Beadle studied corn, fruit flies, and funguses in the US during the twentieth century. These studies helped Beadle earn the 1958 Nobel…
Beadle, George Wells, 1903-1989Genetics
Frank Rattray Lillie's Study of Freemartins (1914-1920)
By: Mary Drago
| Published: Mar 14, 2014
Frank Rattray Lillie's research on freemartins from 1914 to 1920 in the US led to the theory that hormones partly caused for sex differentiation in…
Lillie, Frank Rattray, 1870-1947Intersexuality in animalsFreemartinismHormonesExperiments
The Singapore Bioethics Advisory Committee
By: Ceara O'Brien
| Published: Mar 14, 2014
Established in tandem with Singapore's national Biomedical Sciences Initiatives, the Bioethics Advisory Committee (BAC) was established by the…
OrganizationsSingaporeStem Cellsin vitroethics
"Cellular death in morphogenesis of the avian wing" (1962), by John W. Saunders Jr., et al.
By: Lijing Jiang
| Published: Mar 07, 2014
In the early 1960s, John W. Saunders Jr., Mary T. Gasseling, and Lilyan C. Saunders in the US investigated how cells die in the developing limbs of…
Cell DeathChickens--EmbryosApoptosisExperiments
Studies of Thalidomide's Effects on Rodent Embryos from 1962-2008
By: Joanna Yang, Chanapa Tantibanchachai
| Published: Mar 07, 2014
Thalidomide is a sedative drug introduced to European markets on 1 October 1957 after extensive testing on rodent embryos to ensure its safety. Early…
ContextTeratogenicity testingAbnormalities, HumanThalidomide--Side effectsThalidomide
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
Carl Richard Moore (1892-1955)
By: Mary Drago
| Published: Feb 18, 2014
Carl Richard Moore was a professor and researcher at the University of Chicago in Chicago, Illinois who studied sex hormones in animals from 1916…
Moore, Carl R. (Carl Richard), 1892-1955Intersexuality in animalsIntersex peopleHormones, SexSex Differentiation
The US President's Council on Bioethics (2001-2009)
By: Ceara O'Brien
| Published: Feb 18, 2014
The US President's Council on Bioethics was an organization headquartered in Washington D.C. that was chartered to advise then US President George W…
OrganizationbioethicsAdvisory boardsStem CellsEmbryonic Stem Cells