After these initial patterning events, cell membranes form around the nuclei of the syncytial blastoderm converting it to a cellular blastoderm.
12.
The blastoderm begins to thin as it spreads toward the vegetal pole of the embryo until it has completely engulfed the yolk cell.
13.
Radial intercalation occurs in the DEL . Interior cells of the blastoderm move towards the outer cells, thus " intercalating " with each other.
14.
The second cell population is the enveloping layer which is made of superficial cells from the blastoderm that eventually form a single epithetial cell layer.
15.
A common feature of a vertebrate blastula is that it consists of a layer of blastomeres, known as the blastoderm, which surrounds the blastocoele.
16.
During development ( starting at the blastoderm stage of the embryo ), these genes are constantly expressed in order give the different segments of the fly body specific structures and roles.
17.
Another ( correct and well-established ) use of the word syncytium is found in animal embryology to refer to the coenocytic blastoderm embryos of invertebrates, such as " Drosophila melanogaster ".
18.
Treating embryos with the microtubule depolymerizing agent nocodazole completely blocks epiboly of the YSL and partially blocks epiboly of the blastoderm, while treating with the microtubule stabilizing agent taxol blocks epiboly of all cell layers.
19.
In 1937, she received a Rockefeller Foundation General Education Board Fellowship, enabling her to gain a Masters of Science degree from the University of Atlanta, with a thesis studying the embryo chick blastoderm.
20.
The egg is constantly being rotated in a consistent direction and there is a partial stratification of the yolk; the lighter yolk components will be near one end of the blastoderm and will become the future posterior.
