. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EXPERIMENTS WITH CHRYSOMELID BEETLES. 239 nuclei of one group form a more or less regular layer equidis- tant from the periphery, and later migrate outward, fuse with the " Keimhautblastem " and become the blastoderm (Fig. 2, bT). The nuclei of the other group remain behind in the yolk (Fig. 2, v), which it is their duty to dissolve. Eight of the cleavage products which reach the posterior end do not help to form the blastoderm, but gather the germ cell determinants about them and continue their migration until the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EXPERIMENTS WITH CHRYSOMELID BEETLES. 239 nuclei of one group form a more or less regular layer equidis- tant from the periphery, and later migrate outward, fuse with the " Keimhautblastem " and become the blastoderm (Fig. 2, bT). The nuclei of the other group remain behind in the yolk (Fig. 2, v), which it is their duty to dissolve. Eight of the cleavage products which reach the posterior end do not help to form the blastoderm, but gather the germ cell determinants about them and continue their migration until they are entirely separated from the egg; these are the primordial germ cells (Fig. 2, pgc).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
