. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. ^g f^^. /fxn. ft^ .^-^^ .^^"T m ^ "-^ 'i^m j^-^" Fig. 84. Nuclear division in the asexual cycle of Coccidium schubergi. (After Schaudinn, , 1900.) A-E, the schizont; F-L, the oocyst. the first few divisions of the zygote nucleus after syngamy, are instructive as showing how nuclei which appear to divide in the most purely amitotic fashion may have undergone a previous reorganization which is presum- ably connected with the accurate partition of differentiated chromatin elements between the daughte


. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. ^g f^^. /fxn. ft^ .^-^^ .^^"T m ^ "-^ 'i^m j^-^" Fig. 84. Nuclear division in the asexual cycle of Coccidium schubergi. (After Schaudinn, , 1900.) A-E, the schizont; F-L, the oocyst. the first few divisions of the zygote nucleus after syngamy, are instructive as showing how nuclei which appear to divide in the most purely amitotic fashion may have undergone a previous reorganization which is presum- ably connected with the accurate partition of differentiated chromatin elements between the daughter nuclei (Fig. 84, F-L). There is a prophase closely resembling that of a Metazoan mitosis resulting finally in the formation of a relatively very thick and short spireme. This, however, breaks up into irregular fragments which become united to form a reticular nucleus again, and in this condition the nucleus divides. Although, therefore, the actual division appears to be amitotic it is difficult to avoid the conclusion that the previous arrangement of. 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