. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 212 MAULSBY W. BLACKMAN. During the metaphase, however, one of the chromatic ele- ments does not show the dumb-bell-shape characteristic of the rest, but is very evidently a rod split in the opposite direction, /. e., longitudinally. This peculiarity is also to be seen in the preceding prophase where the accessory chromosome is of the same shape as in the first spermatocyte prophase. As it is seen during the early metaphase, this element is arranged with the plane of cleavage at right angles to the spindle (Fig. 20), but upo
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 212 MAULSBY W. BLACKMAN. During the metaphase, however, one of the chromatic ele- ments does not show the dumb-bell-shape characteristic of the rest, but is very evidently a rod split in the opposite direction, /. e., longitudinally. This peculiarity is also to be seen in the preceding prophase where the accessory chromosome is of the same shape as in the first spermatocyte prophase. As it is seen during the early metaphase, this element is arranged with the plane of cleavage at right angles to the spindle (Fig. 20), but upon the contraction of the mantle fibers which are attached to. 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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