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 ...

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 ...

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 ...

A team led by researchers at the University of Toronto has discovered that a group of cells located in the skin and other areas of the body, called neural crest stem cells, are the source of ...