. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. B «lt V*. D Fig. 6. Blastomere nuclei of Ascarxs tnegalocephala, showing the evolution of a single spiral thread from each telophase chromosome, and its reappearance as the prophase chromosome of the following mitosis (^kfter Bonnevie, ,^ 1908.) A, B, telophase ; C, resting nucleus ; D, prophase. by all the chromosomes become indistinguishably merged into one another, forming a " network of networks," which is the constitution of the resting nucleus. In the prophase a reverse process takes place, each ch
. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. B «lt V*. D Fig. 6. Blastomere nuclei of Ascarxs tnegalocephala, showing the evolution of a single spiral thread from each telophase chromosome, and its reappearance as the prophase chromosome of the following mitosis (^kfter Bonnevie, ,^ 1908.) A, B, telophase ; C, resting nucleus ; D, prophase. by all the chromosomes become indistinguishably merged into one another, forming a " network of networks," which is the constitution of the resting nucleus. In the prophase a reverse process takes place, each chromosomal spongework becoming concentrated first into a spongy band, and then into a homogeneous thread. Division of the chromo- somes into daughter chromosomes takes place in prophase. [Van Beneden and Neyt (1887), Ascaris ; Boveri (1909), Ascaris ; Kowalski (1904), Salamandra (Fig. 7) ; Gregoire (1906), Allium (Fig. 8).] (2) The telophase metamorphosis consists essentially in the formation of long threads from the chromosomes ; the reticulum of the resting 1 For the abbreviations used in references to certain journals, see p. 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 Agar, Wilfred Eade, 1882-. London Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectcells, bookyear1920
