. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3 FIGURE 1. Four-5-minute egg, telophase I. FIGURE 2. Seven-8-minute egg, telophase II. FIGURE 3. Eleven-12-minute egg, late prophase before syngamy. had disappeared from one of the pronuclei. The nuclear memhrane 5). Approximately 5 minutes separate the first few cleavages, but the others occur somewhat less rapidly. By the end of one hour the eighth and final internal cleavage division is usually in progress. Thus, at 25°-26° C. cleavage within the interior of the egg occupies a period of about 45 minutes, with the average


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3 FIGURE 1. Four-5-minute egg, telophase I. FIGURE 2. Seven-8-minute egg, telophase II. FIGURE 3. Eleven-12-minute egg, late prophase before syngamy. had disappeared from one of the pronuclei. The nuclear memhrane 5). Approximately 5 minutes separate the first few cleavages, but the others occur somewhat less rapidly. By the end of one hour the eighth and final internal cleavage division is usually in progress. Thus, at 25°-26° C. cleavage within the interior of the egg occupies a period of about 45 minutes, with the average division cycle lasting only about (> minutes. This rate is somewhat faster than the cleavage cycle of about 9-10 minutes at 20°-30° C. reported for Drosofihila (Sonnenblick, 1950) and 10. 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