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 mitosis and meiosis there is a disassembly of the cell's cytoskeleton and the spindle apparatus forms, which is basically an outgrowth of large numbers of microtubule (MT) filaments from the centrosomes, which form the two centers of the apparatus.