. Cytology, with special reference to the metazoan nucleus. Cells. 38 CYTOLOGY CHAP. It is not found, for example, in Tomopteris. Owing to its conspicuous nature and to the fact that it is confined to the meiotic prophase, it early attracted the attention of cytologists, by many of whom it used to be considered diagnostic of the fact that syndesis was in progress. In. Fig. 16. Meiosis in Lepidosiren (male). [(Agar, , 1912.) A, resting spermatogonial nucleus; B, C, spermatogonial prophase ; |D, daughter plate from a spermatogonial anaphase ; E, resting spermatocyte I.; ¥, zygotene; G, p
. Cytology, with special reference to the metazoan nucleus. Cells. 38 CYTOLOGY CHAP. It is not found, for example, in Tomopteris. Owing to its conspicuous nature and to the fact that it is confined to the meiotic prophase, it early attracted the attention of cytologists, by many of whom it used to be considered diagnostic of the fact that syndesis was in progress. In. Fig. 16. Meiosis in Lepidosiren (male). [(Agar, , 1912.) A, resting spermatogonial nucleus; B, C, spermatogonial prophase ; |D, daughter plate from a spermatogonial anaphase ; E, resting spermatocyte I.; ¥, zygotene; G, pachytene nucleus. consequence of this, the word synapsis proposed by Moore to cover the whole of that period of meiosis in which syndesis occurs, has been applied by many cytologists to its most conspicuous feature alone—namely, the contraction just described. It has been thoroughly established, however, that the contraction of the chromatin has no invariable relation to the. 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, W. E. (Wilfred Eade), 1882-1951. London, Macmillan and Co. , limited
Size: 1418px × 1762px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectcells, bookyear1920
