Tubulin may assemble onto one end while disassembling from the other end of the same microtubule simultaneously in a process known as
A)dynamic instability.
B)treadmilling.
C)nucleation.
D)oligomerization.
E)catastrophe-rescue.

Question

Quizplus · Accepted Answer

Treadmilling is a process where tubulin (or actin in the case of microfilaments) adds onto one end of a filament while disassembling from the other, effectively causing the filament to "move" without changing its overall length. This is distinct from dynamic instability, which involves rapid growth and shrinkage of microtubule ends but not simultaneous addition and loss at opposite ends.

Tubulin May Assemble onto One End While Disassembling from the Other