Final answer:
After vortex breakdown occurs, the tornado typically forms a rope-like shape during the roping stage before dissipating.
Step-by-step explanation:
After vortex breakdown occurs in a tornado, the tornado typically forms a rope-like shape. This is known as the roping stage of a tornado. During this stage, the tornado narrows and elongates, resembling a rope hanging from the sky. The roping stage is often followed by the dissipation of the tornado.