A routing table is a database in a router that stores and updates the locations (addresses) of other network devices and the most efficient routes to them in order to direct routing. Routing is the process of moving packets across a network from one host to a another.
During prophase I of meiosis, the loose, shapeless chromatin binds tightly, winding itself up around histones (proteins embedded in the DNA for structure) to form chromosomes.
In cell division, the first visible changes occur in the nucleus, when the chromonemata condense into chromosomes (Gr; coloured bodies). This stage is called the Prophase (Gr; early figure). Then the nuclear boundary disappears and the chromosomes line up in or near one plane in the cell.