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Question

Which of the following contractile proteins contributes 55% of muscle protein by weight ?

A
Tropomyosin
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B
Troponin
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C
Myosin
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D
Actin
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Solution

The correct option is C Myosin
Myosin is the protein that makes up the thick filaments and it comprises approximately 50-55% of the muscle protein by weight.
So, the correct answer is 'Myosin'.

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