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The cross bridges involved in muscle contraction are located on the __________

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The cross bridges involved in muscle contraction are located on the __________

(a) Myosin myofilaments

(b) Actin myofilaments

(c) Tropomyosin

(d) Dystrophin

This question was posed to me in an internship interview.

Enquiry is from Protein Interactions Modulated by Chemical Energy: Actin, Myosin and Molecular Motors topic in portion Three Dimensional Structure Of Proteins and Protein Function of Biochemistry

1 Answer

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Best answer
Correct option is (a) Myosin myofilaments

Easiest explanation: The globular head of a myosin that projects from myosin filament is a cross bridge.

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