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Temperature-Dependent Sex Determination in Reptiles
By: Karla T. Moeller
| Published: Feb 01, 2013
The sex of a reptile embryo partly results from the production of sex hormones during development, and one process to produce those hormones depends…
Sex DifferentiationReproductionAdaptationfetal developmentEmbryology
Telomerase in Human Development
By: Zane Bartlett
| Published: Mar 23, 2015
Telomerase is an enzyme that regulates the lengths of telomeres in the cells of many organisms, and in humans it begins to function int the early…
TelomeraseTelomereDNAMolecular BiologySomatic embryogenesis
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
"A Genomic Regulatory Network for Development" (2002), by Eric H. Davidson, et al.
By: Justin M. Wolter
| Published: Oct 11, 2013
In 2002 Eric Davidson and his research team published 'A Genomic Regulatory Network for Development' in Science. The authors present the first…
LiteratureGene regulatory networksSystems BiologyGenetic regulationGenes
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
The Notch Signaling Pathway in Embryogenesis
By: Justin Wolter
| Published: Mar 06, 2013
The Notch signaling pathway is a mechanism in animals by which adjacent cells communicate with each other, conveying spatial information and genetic…
EmbryologyDevelopmental BiologyEmbryosCell differentiationNotch genes
Golden Rice
By: Marci Baranski
| Published: Sep 17, 2013
Golden Rice was engineered from normal rice by Ingo Potrykus and Peter Beyer in the 1990s to help improve human health. Golden Rice has an engineered…
TechnologyRiceBiotechnologyGenesMolecular Biology
Karl Oskar Illmensee (1939–)
By: Cheryl Lancaster
| Published: Feb 26, 2017
Karl Oskar Illmensee studied the cloning and reproduction of fruit flies, mice, and humans in the US and Europe during the twentieth and twenty-first…
CloningMolecular CloningClone CellsTwinsEmbryos
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
John Bertrand Gurdon (1933- )
By: Inbar Maayan, Sean Cohmer
| Published: Oct 11, 2012
Sir John Bertrand Gurdon further developed nuclear transplantation, the technique used to clone organisms and to create stem cells, while working in…
Cell nuclei--TransplantationCellsCloningStem CellsEmbryonic Stem Cells