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Question

Contractile proteins include:

A
Troponin
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B
Tropomyosin
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C
Actin and myosin
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D
All the three
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Solution

The correct option is C Actin and myosin
The main components of protein in muscle is actin and myosine that form thin and thick fibers respectively.

The troponin and tropmyosine come under the category of regulatory proteins that regulate the process of muscle contraction.

for example troponin binds with tropomysosine to inhibit actin and myosine interaction during relaxation stage.

Hence the correct answer is (C).


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