. The cell in development and inheritance. Cells. Fig. 38. — Nuclei in the spireme-stage. A. From the endosperm of the Hly, showing true nucleoli. [Flemming.] B. Spermatocyte of salamander. Segmented double spireme-thread composed of chromo- meres and completely split. Two centrosomes and central spindle at s. [HERMANN.] C. Spireme-thread completely split, with si.\ nucleoli. Endosperm of Fritlllaria. [Flem- ming.] lon^i^itudinal splitting of the entire chromosome. This discovery was confirmed by Flemming in the following year ('82, p. 219), and a sim- ilar result has been reached by many othe
. The cell in development and inheritance. Cells. Fig. 38. — Nuclei in the spireme-stage. A. From the endosperm of the Hly, showing true nucleoli. [Flemming.] B. Spermatocyte of salamander. Segmented double spireme-thread composed of chromo- meres and completely split. Two centrosomes and central spindle at s. [HERMANN.] C. Spireme-thread completely split, with si.\ nucleoli. Endosperm of Fritlllaria. [Flem- ming.] lon^i^itudinal splitting of the entire chromosome. This discovery was confirmed by Flemming in the following year ('82, p. 219), and a sim- ilar result has been reached by many other observers (Fig. 38). The division of the chromatin-granules may take place at a very early period. Flemming observed as long ago as i88r that the chromatin- thread might split in the spireme-stage (epithelial cells of the sala- mander), and this has since been shown to occur in many other cases; for instance, by Guignard in the mother-cells of the pollen in the lily ('91). Brauer's recent work on the spermatogenesis of Asearis shows that the fission of the chromatin-granules here takes place even before the spireme-stage, when the chromatin is still in the form of a i'88, p. 113. 2 See '81, 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 Wilson, Edmund B. (Edmund Beecher), 1856-1939. New York : The Macmillan company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcells, bookyear1896
