blastula
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Figure 34.22 The rearrangement of the cells in the mammalian blastula to two layers—the inner cell mass and the trophoblast—results in the formation of the blastocyst.
From Textbooks ● Jun. 9, 2022
The blastula, which in some species is a hollow ball of cells, undergoes a process called gastrulation, in which the three germ layers form.
From Textbooks ● Jun. 9, 2022
Gastrulation is the process in which the cells in the blastula rearrange themselves and form three layers of cells.
From Textbooks ● Jun. 9, 2022
The blastula is often a hollow ball of cells.
From Textbooks ● Jun. 9, 2022
Nevertheless, the gastrula is formed here, as in the previous cases, by the folding or invagination of the blastula.
From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August
For Ptychodera, extensive EST data from egg, blastulae, gastrulae, larvae, juveniles, adult proboscis, stomochord, and gills defining 34,159 cDNA clones53, and 879,000 Roche/454 RNAseq reads from a mixed library of developmental stages54 were used.
From Nature ● Nov. 17, 2015
Near the end of my visit, our conversation turned from the theoretical consideration of morulas and blastulas to the specific realities of my own condition and treatment.
From Slate ● May 23, 2012
I picture the embryos themselves: round blastulas, with evenly divided cells.
From Slate ● May 23, 2012
