. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RADIATION OF ARBACIA GAMETES RESULTS 23 Preliminary experiments utilizing Pa2 had been previously carried out and reported upon (Green and Roth, 1950), but the data reported here were obtained during the summer of 1953. Figure 1 is a plot of the per cent first cleavage against time of Arbacia eggs fertilized with sperm which had been irradiated for two hours prior to fertilization by three dose levels of S3r>. The graph shows that the time of cleavage is delayed 100. 55 59 63 67 MINUTES AFTER FERTILIZATION FIGURE 1. Plot
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RADIATION OF ARBACIA GAMETES RESULTS 23 Preliminary experiments utilizing Pa2 had been previously carried out and reported upon (Green and Roth, 1950), but the data reported here were obtained during the summer of 1953. Figure 1 is a plot of the per cent first cleavage against time of Arbacia eggs fertilized with sperm which had been irradiated for two hours prior to fertilization by three dose levels of S3r>. The graph shows that the time of cleavage is delayed 100. 55 59 63 67 MINUTES AFTER FERTILIZATION FIGURE 1. Plot of per cent first cleavage against time when sperm were irradiated for two hours prior to fertilization of non-irradiated eggs. £ = non-irradiated; O = p-C per ml. S35; A = MC per ml. S35; D = 50 /*C per ml. S35. by prior irradiation of the sperm, roughly in proportion to the dosage of radio- activity. The decrease in per cent cleavage in the case of the dose after 61 minutes does not represent an error in counting but is probably attributed to experimental variation. Figure 2 is a plot similar to Figure 1 and shows the results of irradiation of eggs for two hours with three dose levels of S35 prior to fertilizing with non-. 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
