FIG. 8.

A model showing positions of terminus region for chrI (black dots) and chrII (gray dots) during a bacterial division cycle. The vertical dotted lines represent cell half or quarter positions. In this model, the terminus of chrI traverses from the new pole to the midcell (i.e., spans only the new-pole half of the cell). The terminus region of both the chromosomes duplicates in midcell position. The terminus of chrII is seldom polar and preferentially stays close to the midcell position overlapping with the terminus for chrI.