0 0 votes Which one of the following statements is true for actin? Actin filament is structurally polarized and the two ends are not identical De novo actin polymerization is a single-step process The pointed end of the actin filaments is the fast growing end Actin forms spindle fibers during mitosis Cell Biology gate2018 cell biology division + – gatecse 2.7k points answer comment Share Follow 0 reply Please log in or register to add a comment.