. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 6. Drawing of a median section of the egg , sectioned parallel to the egg axis. Abnormal late blastula. Large areas of the yolk region unsegmented. No FIG. 7. Drawing of a median section of the egg , sectioned parallel to the egg axis. Abnormal late blastula. Cells with pycnotic nuclei in segmentation cavity. than are seen in this egg. Figures 12 and 13 show two of these mitoses. The egg shown in Fig. 5 illustrates the typical condition in the group of six completely segmented eggs. The majority


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 6. Drawing of a median section of the egg , sectioned parallel to the egg axis. Abnormal late blastula. Large areas of the yolk region unsegmented. No FIG. 7. Drawing of a median section of the egg , sectioned parallel to the egg axis. Abnormal late blastula. Cells with pycnotic nuclei in segmentation cavity. than are seen in this egg. Figures 12 and 13 show two of these mitoses. The egg shown in Fig. 5 illustrates the typical condition in the group of six completely segmented eggs. The majority of cells contain bipolar spindles with no chromosomes; spindles similar to the one shown in Fig. 14. A few cells contain single cytasters. In other cells, the nuclei are degenerating. The small blastocoele has a few fragments. 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