. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 4 EMBRYOLCXiY OF INSECTS AND MYRIAPODS Cell Division.—Cells multiply by direct, or indirect division. By direct division (amitosis) the cell including the nucleus is merely pinched in two. This process is characteristic of aging cells. Indirect division (mitosis), the usual method of nuclear division, is a series of complex processes which may be arranged in several phases (Fig. 2). In the resting stage {A)
. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 4 EMBRYOLCXiY OF INSECTS AND MYRIAPODS Cell Division.—Cells multiply by direct, or indirect division. By direct division (amitosis) the cell including the nucleus is merely pinched in two. This process is characteristic of aging cells. Indirect division (mitosis), the usual method of nuclear division, is a series of complex processes which may be arranged in several phases (Fig. 2). In the resting stage {A) of the cell the so-called "chromatin granules," composed of a dark staining substance, are apparently scattered through the nucleus. When about to divide, this chromatin material takes on the form of threads or a long single strand, or spireme {B), which later separates into. 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 Johannsen, O. A. (Oskar Augustus), 1870-1961; Butt, Ferdinand Hinckley, 1899-. New York, London, McGraw-Hill Book Company, inc.
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