Abstract
The DNA of the bacterial genome is organised quite differently from that of eukaryotic cells: Since only one linkage group exists, the “genome” of the bacterium is considered to be a single chromosome. A simple mechanism of division would allow an equipartition of the bacterial genome, in contrast to organisms with multiple chromosomes, where the chromosomes, condensed in metaphase, are presumably separated by the mitotic spindle fibers. In the condensed, compact form, the DNA is neither replicating nor transcriptionally active. In prokaryotes, replication and transcription are continuous when the cells are under optimal growth conditions (see Ingraham et al. 1983). Furthermore, Miller et al. (1970) showed that initiation of translation occurs as soon as a piece of the messenger RNA becomes available on the transcribing DNA.
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Dedicated to Karl Lickfeld in honor of his 60th birthday.
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Bjornsti, M.A., Hobot, J.A., Kelus, A.S., Villiger, W., Kellenberger, E. (1986). New Electron Microscopic Data on the Structure of the Nucleoid and Their Functional Consequences. In: Gualerzi, C.O., Pon, C.L. (eds) Bacterial Chromatin. Proceedings in Life Sciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-71266-1_7
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