. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 198 BARBARA HEFFNER. one-cell stages examined with reference to this point, I found in 16 cases two, and in 18 three such chromosomes. Fig. I, a, illus- trates a case with two V-shaped chromosomes in each daughter plate. Their antagonistic position proves that they are division. Ib ^ 2c 2a 2b. 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 Biologi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 198 BARBARA HEFFNER. one-cell stages examined with reference to this point, I found in 16 cases two, and in 18 three such chromosomes. Fig. I, a, illus- trates a case with two V-shaped chromosomes in each daughter plate. Their antagonistic position proves that they are division. Ib ^ 2c 2a 2b. 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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