Question

. Which of the following statements about the molecular arrangement of actin in myofibrils is INCORRECT?

1) Each actin (thin) filament is made up of two *F' (filamentous) actins helically wound to each other.
II) Each 'F' actin is a polymer of monomeric ‘G’ (globular) actins.
III) Two filaments of another protein, tropomyosin also run close to the 'F' actins throughout its length.
IV) A complex protein called troponin is distributed at regular intervals on the tropomyosin.

1) I and II only
2) III only
3) Only IV
4) None of these​

Answer 1

Answer:

IV) A complex protein called troponin is distributed at regular intervals on the tropomyosin.

Answer 2

Answer:

is the 2 option

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