Filter my results
Search
Displaying 31 - 40 of 106
Teratogens
By: Chanapa Tantibanchachai
| Published: Jan 22, 2014
Teratogens are substances that may produce physical or functional defects in the human embryo or fetus after the pregnant woman is exposed to the…
Abnormalities, HumanFetusPregnancyTeratogenicity testingEmbryos
Johann Friedrich Blumenbach (1752-1840)
By: Kate MacCord
| Published: Jan 22, 2014
In eighteenth century Germany, Johann Friedrich Blumenbach studied how individuals within a species vary, and to explain such variations, he proposed…
AnthropologyAnatomy, ComparativeVariation (Biology)EmbryosDevelopmental Biology
"Genetic Evidence Equating SRY and the Testis-Determining Factor" (1990), by Phillippe Berta et al.
By: Troy Cox
| Published: Jan 10, 2014
In the late 1980s, Peter Goodfellow in London, UK led a team of researchers who showed that the SRY gene in humans codes a protein that causes testes…
TestisY ChromosomeEmbryosChromosomesSex Chromosomes
Congenital Rubella Syndrome (CRS)
By: Erica O'Neil
| Published: Jan 10, 2014
Congenital rubella syndrome (CRS) can occur in children whose mothers contracted the rubella virus, sometimes called German measles, during pregnancy…
RubellaRubella in pregnancyRubella virusPregnancyEmbryos
"Screening for Congenital Hypothyroidism" (1991), by Delbert A. Fisher
By: Jennifer R. Craer
| Published: Dec 31, 2013
In his 1991 article Screening for Congenital Hypothyroidism, Delbert A. Fisher in the US reported on the implementation and impact of mass neonatal…
LiteratureCongenital HypothyroidismNewborn infants--DevelopmentCretinismInfant Health Services
Sex-determining Region Y in Mammals
By: Troy Cox
| Published: Dec 31, 2013
The Sex-determining Region Y (Sry in mammals but SRY in humans) is a gene found on Y chromosomes that leads to the development of male phenotypes,…
Y ChromosomeTestisEmbryosChromosomesSex Chromosomes
"Congenital Cataract following German Measles in the Mother" (1941), by Norman McAlister Gregg
By: Lindsey O'Connell
| Published: Dec 31, 2013
In Australia in the 1940s, Norman McAlister Gregg observed a connection between pregnant women who contracted the rubella virus, or German measles,…
LiteratureCataract in childrenRubellaRubella in pregnancyRubella virus
"The Cell-Theory" (1853), by Thomas Henry Huxley
By: Samantha Hauserman
| Published: Dec 12, 2013
The Cell-Theory was written by Thomas Henry Huxley in Britain and published in 1853 by The British and Foreign Medico-Chirurgical Review. The twenty-…
LiteratureEpigeneticsEmbryologyHuxley, Thomas Henry, 1825-1895Cellular control mechanisms
Possums (1952), by Carl G. Hartman
By: Gia Goodman, Karen Wellner
| Published: Dec 02, 2013
Possums is a 174-page book consisting of a series of essays written about the Virginia opossum (Didelphis virginiana), the only living marsupial in…
LiteratureVirginia opossumEmbryologyMarsupialsNatural history
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