. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 30 31 33. 35 FIG. 28. A pair of second spermatocytes slmwin- tin heterochrom and y. FIG. 29. Second spermatocyte metaphase. FIG. 30. Second spermatocyte equatorial p; FIG. 31. Second spermatocyte anaphase. .Pics. 32-35. Four stages in the transformation t" tin- spermatid, -li«>\viiii; no trace of the hetcrochromosomes. All figures 2,000 X i '^ reduced ' _•. iii mitosis in such away as to indicate that the rest stai^e betwcrn the two divisions may often be omiited. This is as tar a> the heterochromosomes can be tra


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 30 31 33. 35 FIG. 28. A pair of second spermatocytes slmwin- tin heterochrom and y. FIG. 29. Second spermatocyte metaphase. FIG. 30. Second spermatocyte equatorial p; FIG. 31. Second spermatocyte anaphase. .Pics. 32-35. Four stages in the transformation t" tin- spermatid, -li«>\viiii; no trace of the hetcrochromosomes. All figures 2,000 X i '^ reduced ' _•. iii mitosis in such away as to indicate that the rest stai^e betwcrn the two divisions may often be omiited. This is as tar a> the heterochromosomes can be traced. In the second maturation spindle I have never been able t count the full number of chromo-i-iiu•.- because !" > roudiii^ and overlapping. In the clearest case- -een in ai rniinc prepa-. 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


Size: 1130px × 2211px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology