Cabo San Lucas, Mexico â Residents and tourists hunkered down in shelters and hotel conference rooms overnight as a powerful and sprawling Hurricane Odile made landfall on the southern Baja California peninsula.
DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication.
Some bacteria such as Borrellia Spirochetes (which causes Lyme disease) contain a linear chromosome rather than a circular one. Within the well defined nucleus of the eukaryote, chromosomes have a sequence-based and well defined structure, while in prokaryotes there is a single point from where replication starts. In archaea, however, replication may originate at multiple points. The non-bound nuclei found in prokaryotes do not have a well defined DNA structure organized around proteins, with the exception of the archaea where DNA is packaged to form nucleosomes. The nucleoid occupies a central position in the bacterial cell as the nucleus does in eukaryotic cells.