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1
Gastrulation: Movements, Patterns and Molecules - Pagina 67
positioning of its neuralizing and mesodermalizing parts), which may not be completed until late in gastrulation. These possibilities are hard to distinguish, especially if an aspect of the gastrula organizer's function is to complete its spatial ...
Ray Keller, Wallis H. Clark Jr., Frederick Griffin, 2012
2
Principles of Development - Pagina 167
The Wnt antagonist Frzb also generates a ventral-to-dorsal gradient of Wnt activity in the gastrula by binding to Wnt proteins and preventing them acting dorsally. Yet another signaling antagonist produced by the organizer is Cerberus, which ...
Lewis Wolpert, Emeritus Professor of Biology Lewis Wolpert, Cheryll Tickle, 2015
3
Evolutionary Developmental Biology - Pagina 132
At the onset of gastrulation, the zygotic genome takes over from maternal cytoplasmic and ovum genomic controls that directed early development. Without fertilization, the egg rapidly dies, its promise unevoked and its potential to produce ...
4
Current Topics in Developmental Biology - Pagina 64
Recent findings on morphology and gene expression in several mammalian embryos suggest that there is a new landmark and possibly a center with organizer activity in the anterior margin of the embryo at the onset of gastrulation.
Roger A. Pedersen, Gerald P. Schatten, Gerald Schatten, 1999
5
Principles of Developmental Genetics - Pagina 911
analyses performed in the mouse, chick, and frog have mapped the movement of gastrulation-stage endoderm cells to broad domains of the developing gut tube and early organ primordia (Chalmers and Slack, 2000; Kimura et al., 2006; ...
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Patterning in Vertebrate Development - Pagina 15
When cells from this region of an early Xenopus gastrula normally fated to form neural structures are transplanted to an ectopic position in another gastrula embryo, they do not develop into neural tissue but instead respond to signals in their ...
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Evolutionary Developmental Biology of Invertebrates 6: ... - Pagina 100
Subsequent work has shown that gastrulation is far simpler than most of these earlier authors believed. Spotting of the fluorescent dye DiI on the blastopore lip at the beginning of gastrulation and following the dye as the blastopore closed ...
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Developmental Biology - Pagina 55
The events that bring such cellular reorganization is termed as gastrulation. The term gastrulation literally means the formation of a primitive archenteron. However, the formation of three germ layers by the rearrangement of the blastodermal ...
9
Developmental Biology - Pagina 191
The transformation of a single walled blastula into a double walled gastrula is called gastrulation. Now the gastrula exhibits elongation in an antero-posterior direction. The wide mouth of the archenteron gradually narrows into a tiangular hole ...
10
The Sea Urchin: Molecular biology - Pagina 21
Amount of protein synthesized at the early gastrula stage of the sea urchin Lytechinus Similar experimental procedures and calculations were carried out for alanine,. Amount of protein Incorporation synthesized rate of labeled Protein amino ...
S. A. Terman, John P. Chamberlain, 1973
