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Sir Graham Collingwood Liggins (1926-2010)
By: Kathleen O'Connor
| Published: Feb 16, 2012
Sir Graham Collingwood Liggins devoted much of his professional life to obstetric research. Liggins demonstrated that hormones created by the fetus…
PeopleObstetriciansFetusEmbryosPregnancy
Christiane Nusslein-Volhard (1942- )
By: May Catherine, Jack Resnik
| Published: Feb 16, 2012
Christiane Nusslein-Volhard studied how genes control embryonic development in flies and in fish in Europe during the twentieth and twenty-first…
DrosophilaEmbryologyGenesMorphogenesisRNA polymerases
Spemann-Mangold Organizer
By: Samuel Philbrick, Erica O'Neil
| Published: Jan 12, 2012
The Spemann-Mangold organizer, also known as the Spemann organizer, is a cluster of cells in the developing embryo of an amphibian that induces…
EmbryosAmphibiansSpemann, Hans, 1869-1941EmbryologyGastrulation
Multi-Fetal Pregnancy
By: Corinne DeRuiter
| Published: Jan 01, 2012
In humans, multi-fetal pregnancy occurs when a mother carries more than one fetus during the pregnancy. The most common multi-fetal pregnancy is…
ReproductionFetusHuman Development
Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Gene
By: Kristina Winikates
| Published: Jan 01, 2012
The Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene was identified in 1989 by geneticist Lap-Chee Tsui and his research team as the…
Cystic FibrosisReproductionCongenital DisordersHuman Development
Turpin v. Sortini (1982)
By: Mark Zhang
| Published: Jan 01, 2012
The Supreme Court of California reversed the Superior Court of Fresno County's decision to dismiss the Turpins' claims in the case Turpin v. Sortini…
LawWrongful lifeReproductionCongenital Disordersbioethics
2D Obstetric Ultrasound
By: Sean Cohmer
| Published: Jan 01, 2012
The development of the obstetric ultrasound has allowed physicians and embryologists to obtain a clear picture of the developing human embryo and…
TechnologyUltrasonographyReproductionmedicineHuman Development
Buck v. Bell (1927)
By: Nathalie Antonios, Christina Raup
| Published: Jan 01, 2012
In 1927, the US Supreme Court case Buck v. Bell set the legal precedent that states may sterilize inmates of public institutions because the court…
LawEugenicsConstitutional courtsSterilization (Birth control)Involuntary Sterilization
Cystic Fibrosis
By: Kristina Winikates
| Published: Jan 01, 2012
Cystic fibrosis (CF) is a fatal, inherited disease found in humans and characterized by buildup of thick, sticky mucus, particularly in the…
Cystic FibrosisGeneticsDiseases
"The Potency of the First Two Cleavage Cells in Echinoderm Development. Experimental Production of Partial and Double Formations" (1891-1892), by Hans Driesch
By: Megan Kearl
| Published: Jan 01, 2012
Hans Adolf Eduard Driesch was a late-nineteenth and early-twentieth century philosopher and developmental biologist. In the spring of 1891 Driesch…
ExperimentsPublicationsSea Urchins