Chromosomal Differentiation of Cells

摘要: The chromosomes of differentiated cells have been much less studied than those meristematic or germline cells, probably because such do not usually divide spontaneously. However, in many cases they can be induced to undergo mitosis. Plant renew their mitotic activity around a wound, after application plant growth substances (Therman, 1951; D’Amato, 1952; Tschermak-Woess, 1956). Similarly, portion the mouse liver removed stimulate tissue regeneration. Mouse also by injecting animal with carbon tetrachloride (CC14). as rule, highly polyploid cannot mitosis, although sometimes cancer so spontaneously (Figs. 30.2d and 30.4d).