Final answer:
Dynamic instability is the ability of a microtubule to switch between polymerization and depolymerization. Microtubules are hollow tubes made up of alpha-tubulin and beta-tubulin dimers. They play a vital role in cell division and can disassemble and reform rapidly.
Step-by-step explanation:
Dynamic instability refers to the ability of a microtubule to switch back and forth between polymerization and depolymerization. Microtubules are small hollow tubes made up of polymerized dimers of alpha-tubulin and beta-tubulin. They play a crucial role in cell division, as they set the paths along which the genetic material is pulled. Microtubules can also disassemble and reform quickly.