. Cytology. Cytology. Figure 6-3. Electron Micrographs Showing Spindle Fibers in (a) Pollen Mother Cell of Lilium speciosnm at Metaphase I, and (b) Meristematic Cell of Pisiim Root Tip at Somatic Anaphase. (Fig. (a), from Sato, S., 1960. "Electron Microscope Studies on the Mitotic Figure. III. Process of the Spindle Formation," Cytologic!, 25, Fig. 8, p. 126. Courtesy of Dr. S. Sato, University of Tokyo. Fig. (b), courtesy of Mr. L. V. Leak, Michigan State University.) Every physical and physiochemical force which could conceivably bring about movement of the type exhibited by chromo
. Cytology. Cytology. Figure 6-3. Electron Micrographs Showing Spindle Fibers in (a) Pollen Mother Cell of Lilium speciosnm at Metaphase I, and (b) Meristematic Cell of Pisiim Root Tip at Somatic Anaphase. (Fig. (a), from Sato, S., 1960. "Electron Microscope Studies on the Mitotic Figure. III. Process of the Spindle Formation," Cytologic!, 25, Fig. 8, p. 126. Courtesy of Dr. S. Sato, University of Tokyo. Fig. (b), courtesy of Mr. L. V. Leak, Michigan State University.) Every physical and physiochemical force which could conceivably bring about movement of the type exhibited by chromosomes in mitosis has been invoked in attempts to explain the mechanism. Most of these are discussed in detail in Franz Schrader's book, Mitosis (1953), and will be mentioned here only briefly. Elastic Fibers This is perhaps the oldest idea of all, and many variants of the basic scheme have been proposed. Fundamentally the notion is that the MECHANICS AND PHYSIOLOGY OF CELL DIVISION / 143. 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, G. B. (George Bernard), 1914-; Morrison, John H. (John Herbert), 1927-. New York, Reinhold
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