What is the location of troponin in the process of muscle contraction?

Attached to myosin filament

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Attached to tropomyosin

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Attached to myosin cross bridge

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Attached to T-tubule

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Solution

The correct option is B Attached to tropomyosin
The proteins troponin and tropomyosin are closely associated with actin. Troponin is a complex of three polypeptide chains- $T_{n} C, T_{n} I a n d T_{n} T . T_{n} C$ binds to $C A^{2 +}, T_{n} I$ binds to actin and $T_{n} T$ binds to tropomyosin.

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