Nonfiction 13

New PDF release: Cell growth and cell division

By Harris, Robert John Cecil

ISBN-10: 1483230740

ISBN-13: 9781483230740

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This publication was once written in 2006, midway via George W. Bush’s moment time period as president. greatly used to be mistaken with the US then, and that i concept the examine on authoritarian personalities might clarify loads of it. due to the fact that then a brand new management has been elected, and even though it has needed to care for a really severe financial problem caused by others, it really is taking steps to right a few of what's wrong.

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Maybe it’ll paintings that approach for you too.

Bob Altemeyer
May, 2010
(http://home. cc. umanitoba. ca/~altemey/)

Additional info for Cell growth and cell division

Sample text

Macrostomatous Tetrahymena that were significantly enlarged could not be produced by nutritional alterations of completely defined media. The possible advantages of utilizing multinoded macronucleate ciliates, as compared to ciliates with a compact type of macronucleus, for growth and cell-division studies are given. As a result of these studies, it is felt that the condition of bacteria-fed organisms, frequently subcultured, and maintained at 18°C, is possibly the most similar to the condition of organisms in their natural habitat.

Hirshfield and Pecora showed that treatment with colchicine increased the size of the micronuclei of the average size forms to the size of the micronuclei of the giant forms. This increase in micronuclear size indicates increased polypoidy that is probably produced by endomitosis [9, 15]. If this does occur, it may indicate that endomitosis also occurs in the macronucleus, and that the micronucleus is merely reflecting the events occurring in the trophically MACRONUCLEAR VARIABILITY OF Blepharisma 49 important macronucleus.

8. B. americanum, cannibal giant. Note macronuclei of two ingested B. americanum. Feulgen preparation fixed with Schaudinn's solution. Magnification: X 190. FIG. 9. B. americanum, cannibal giant, showing increase in the size and number of the beads of the macronucleus. Feulgen preparation fixed with Schaudinn's solution. Magnification: X 190. FIG. 10. B. americanum, cannibal giant, showing a macronucleus with 20 beads. Feulgen preparation fixed with Schaudinn's solution. Magnification: X 190. FIG.

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Cell growth and cell division by Harris, Robert John Cecil

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