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Which of the following is a contractile protein of a muscle?

  • a)
    Tubulin

  • b)
    Tropomyosin

  • c)
    Myosin & Actin

  • d)
    None of the above

Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following is a contractile protein of a muscle?a)Tubulinb...
Contractile proteins are proteins that mediate sliding of contractile fibres (contraction) of a cell’s cytoskeleton, and of cardiac and skeletal muscle. Heart and muscle contractile fibres consist of bundles of actin polymers that slide alongside each other by the activity of the motor protein myosin and associated contractile proteins such as troponin and titin.


Actin, protein that is an important contributor to the contractile property of muscle and other cells. It exists in two forms: G-actin (monomeric globular actin) and F-actin (polymeric fibrous actin), the form involved in muscle contraction.
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Most Upvoted Answer
Which of the following is a contractile protein of a muscle?a)Tubulinb...
The proteins which generates force during contraction are called contractile proteins the answer is actin and myosin but u gave only myosin
Community Answer
Which of the following is a contractile protein of a muscle?a)Tubulinb...
Myosin and actin both are contractile protein..it should be both option c and d
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Which of the following is a contractile protein of a muscle?a)Tubulinb)Tropomyosinc)Myosin &Actind)None of the aboveCorrect answer is option 'C'. Can you explain this answer?
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