Multiple Choice
Which statement about muscle contractile proteins is true?
A) Three chains of actin monomers twisted together form an actin filament.
B) A molecule of myosin consists of two long linear polypeptide chains each with a globular head.
C) A myosin filament consists of a single myosin molecule with its heads projecting at the ends of the filament.
D) The polypeptides that make up actin have globular heads.
E) Tropomyosin twists around the myosin molecule.
Correct Answer:
Verified
Correct Answer:
Verified
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