Routing Protocol Definition. A routing protocol is a set of rules used by routers to determine the most appropriate paths into which they should forward packets towards their intended destinations.
Spindle fibers are protein structures that form early in mitosis, or cell division. They consist of microtubules that originate from the centrioles, two wheel-shaped bodies located in the centromere area of the cell. The centromere is also known as the microtubule organizing center.
During prophase two, the chromosomes condense into a smaller form. After they have condensed, a material called spindle fibers forms. These spindle fibers attach to the chromosomes and prepare to pull them to the equator of the newly formed cells.