. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 6. PLATE I EXPLANATION OF FIGURES FIG. 1. One of the eight blastomeres of a zebra fish egg, living. Nucleus with a few partition lines within, in the center. X 500. FIGS. 2-7. Nuclei, fixed in Bouin's, Heidenhain'shaematoxylin, 6-8yu. X 1100. The different sizes of the nuclei are due to their belonging to different cleavage stages. FIG. 2. Prophase in the beginning. Vesicles still visible. Indentations at the poles. FIG. 3. Advanced prophase, chromosomes appearing. FIG. 4. Chromosomes forming metaphase plate. Outline of nucl


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 6. PLATE I EXPLANATION OF FIGURES FIG. 1. One of the eight blastomeres of a zebra fish egg, living. Nucleus with a few partition lines within, in the center. X 500. FIGS. 2-7. Nuclei, fixed in Bouin's, Heidenhain'shaematoxylin, 6-8yu. X 1100. The different sizes of the nuclei are due to their belonging to different cleavage stages. FIG. 2. Prophase in the beginning. Vesicles still visible. Indentations at the poles. FIG. 3. Advanced prophase, chromosomes appearing. FIG. 4. Chromosomes forming metaphase plate. Outline of nucleus still visible. FIG. 5. Nuclei from cells after the twelfth cleavage, showing typical spireme formation in the prophase. FIG. 6. Early telophase. Formation of chromosomal vesicles. FIG. 7. Late telophase. Vesicles in contact. Paternal and maternal half of chromosomes apparently 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