Actin filaments depolymerise and repolymerise in motile cells within

0.2 - 0.3 millisecond

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Solution

The correct option is B 0.2 - 0.3 millisecond
Skeletal muscle fiber is made up of two types of filaments. They are thick filament and thin filament.
Thin filament is made up of a protein called actin.
Actin filaments depolymerize and repolymerise in motile cells within 0.2 - 0.3 millisecond.
So, the correct answer is '0.2 -0.3 millisecond.

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