. The cell; outlines of general anatomy and physiology. Fig. 126.—Diagram showing the development of sperm-cells from a sperm-mother-cellof Ascaris megalocephala livalens. I. Division of the sperm-mother-cell into two sperm-daughter-cells. II. The two sperm-daughter-cells (A, B) immediately prepare to dividea second time. III. The sperm-daughter-cell A divides into two and C are grand-daughter-cells, which have been produced by the division of thedaughter-cell B of Fig. II. two daughter-cells of equal size (Fig. 126 II.). Whilst thisprocess of constriction is taking plac
. The cell; outlines of general anatomy and physiology. Fig. 126.—Diagram showing the development of sperm-cells from a sperm-mother-cellof Ascaris megalocephala livalens. I. Division of the sperm-mother-cell into two sperm-daughter-cells. II. The two sperm-daughter-cells (A, B) immediately prepare to dividea second time. III. The sperm-daughter-cell A divides into two and C are grand-daughter-cells, which have been produced by the division of thedaughter-cell B of Fig. II. two daughter-cells of equal size (Fig. 126 II.). Whilst thisprocess of constriction is taking place, the changes commencewhich lead up to the second division (Fig. 126 I.), the cen-trosome of each daughter-cell splits up into two parts whichtravel, each surrounded by its own radiation sphere, in oppositedirections, which are parallel to the first division plane (Fig. 126A, B). The nuclear segments produced by the first divisionimmediately afford the material for the second division, withoutpassing through the vesicular resting condition. They mo
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Keywords: ., bookcentury1800, bookdecade1890, bookidcelloutlines, bookyear1895
