What is a protein that is the main component of the thick filaments in muscle fibers and is responsible for muscle contraction?

A. actin
B. myosin
C. ATP
D. DNA



Answer :

Final answer:

Myosin is the main protein component responsible for muscle contraction in muscle fibers.


Explanation:

The protein that is the main component of the thick filaments in muscle fibers and is responsible for muscle contraction is myosin. Myosin works in conjunction with actin to produce muscle contractions by pulling on the thin actin filaments.


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