Neural crest cells have been thought to originate in the ectoderm, the outermost of the three germ layers formed in the earliest stages of embryonic development. But their capacity to form derivatives ...
Appropriate organization of three germ layers—endoderm, mesoderm and ectoderm—during gastrulation is essential for a developing embryo. Mechanistic studies on the morphogenesis of embryos in ...
A germ layer is a collection of cells, formed during animal embryogenesis. Germ layers are only really pronounced in the vertebrates. However, all animals more complex than sponges (eumetazoans and ...
Figure 1: Determining the expression profiles of the C. elegans embryonic founder cell lineages. Figure 4: The germ layers exhibit distinct gene ages and functional category enrichments. Precisely ...
Proceedings of the Royal Society of London. Series B, Biological Sciences, Vol. 134, No. 876 (Jul. 2, 1947), pp. 377-398 (30 pages) A critical study and demonstration of the distribution of yolk ...
The discovery of a new kind of stem cell challenges conventional thinking about embryonic development. According to the traditional view, the human embryo develops from a three-layered collection of ...
A mature cell of one type can be turned into a mature cell of another type without the cell having to pass through an earlier stage of development. This is called direct reprogramming, a reliable but ...
(Philadelphia, PA) – Researchers at the Lewis Katz School of Medicine at Temple University have discovered that the Hippo signaling effector YAP1 is a master regulator of Nodal signaling in human ...
American Journal of Botany, Vol. 27, No. 10 (Dec., 1940), pp. 895-905 (11 pages) Periclinal chimeras were obtained in Datura by treating seeds for 3-8 days with 0.2 per cent to 0.4 per cent solutions ...
How does the “body” take shape? The body of animals is highly complex, containing distinct regions that carry out specific functions. As the body forms during embryogenesis, three germ layers are ...
Neurodevelopment is an incredibly complex, but tightly controlled process governed by the sequential action of various genes. Neurodevelopment continues well after birth into early adolescence.
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