. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 172 GRACE SAUNDERS ROLLASON CLEAVAGE too to 70 CSC- 40- 30- 80- *~~ OVARIAN. 100 200 400 SOO 1600 3200 DOSE IN ROENTGEN UNITS 6400 12800 25600 41600 FIGURE 1. Gastrulation of irradiated ovarian and uterine eggs It appears from Tables 2 and 3 and Figures 2 and 3 that irradiation with x-rays even at high doses does not affect appreciably the ability of either the ovarian or uterine eggs to undergo morphogenetic movements at least up to the formation of a dorsal lip. The number of abnormal gastrulae, however, markedly increases
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 172 GRACE SAUNDERS ROLLASON CLEAVAGE too to 70 CSC- 40- 30- 80- *~~ OVARIAN. 100 200 400 SOO 1600 3200 DOSE IN ROENTGEN UNITS 6400 12800 25600 41600 FIGURE 1. Gastrulation of irradiated ovarian and uterine eggs It appears from Tables 2 and 3 and Figures 2 and 3 that irradiation with x-rays even at high doses does not affect appreciably the ability of either the ovarian or uterine eggs to undergo morphogenetic movements at least up to the formation of a dorsal lip. The number of abnormal gastrulae, however, markedly increases with TABLE 2 Ovarian eggs (Each percentage based on previous stage) X-ray dose in roentgen units No. eggs cleaved Per cent Gastrulated Per cent Neurulated Per cent Hatched Per cent Normal Control 780 100 100 r. 400 100 200 r. 1,600 400 r. 800 100 800 r. 3,669 1,600 r. 782 100 3,200 r. 1,600 6,400 r. 1,182 12,800 r. 520 25,600 r. 935 41,600 r. 56 0. 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
