Which one of the following statements is true for actin?

1.	Which one of the following statements is true for actin?
A.	Actin filament is structurally polarized and the two ends are not identical
B.	De novo actin polymerization is a single-step process
C.	The pointed end of the actin filaments is the fast growing end
D.	Actin forms spindle fibers during mitosis
Answer» B. De novo actin polymerization is a single-step process

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Which one of the following statements is true for actin?

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