Moderate
Which one of the following is a regulatory protein of the muscle ?
Correct answer: A. Troponin
- A. Troponin
- B. Myosin
- C. Actin
- D. Protein- C
Explanation
Troponin is a regulatory protein that controls actin-myosin interaction in striated muscle in response to calcium. Actin and myosin are the main contractile proteins, not the regulatory complex.
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