What is the function of the "G" (Globular) actin?

What is the function of the "G" (Globular) actin?
  1. To activate the binding sites for myosin on actin filaments
  2. To mask the active binding sites for myosin on actin filaments
  3. To form the "F" (Filamentous) actins
  4. To regulate the interaction between "F" actins and tropomyosin

Solution

Each "F" actin is a polymer of monomeric "G" (Globular) actins.

Asked in: NCERT

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