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.
Phases of mitosis. 1  The chromosomes start to condense (making them easier to pull apart later on). 2  The mitotic spindle begins to form. The spindle is a structure made of microtubules, strong fibers that are part of the cellâs âskeleton.â Its job is to organize the chromosomes and move them around during mitosis.