. Cytology. Cytology. prometaphase. The long-debated question as to whether the spindle is a component of the nucleus, cytoplasm, or both is still unanswered. There are many views concerning the nature of the spindle fibers themselves, ranging from the opinion that they are precipitation arti- facts to the idea that they represent real fibers presumably protein in composition. They have also been assumed to be lines of force or stress lines and channels. There is very little doubt that they represent real organization (Figure 6-2 (a) and (b)) as indicated by studies with polarized light (Inoue
. Cytology. Cytology. prometaphase. The long-debated question as to whether the spindle is a component of the nucleus, cytoplasm, or both is still unanswered. There are many views concerning the nature of the spindle fibers themselves, ranging from the opinion that they are precipitation arti- facts to the idea that they represent real fibers presumably protein in composition. They have also been assumed to be lines of force or stress lines and channels. There is very little doubt that they represent real organization (Figure 6-2 (a) and (b)) as indicated by studies with polarized light (Inoue, 1953; Swann, 1951) and by electron micrography (Figure 6-3).. Figure 6-3. {Contin. on opposite page.) 142 / CHAPTER 6. 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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