Why must tropomyosin cover the thin filament in just the right position before the muscle can relax?
A) It covers the myosin binding sites and, if left exposed, will allow the myosin to bind and pull.
B) Without it in the correct position, calcium cannot be released.
C) It is needed in the proper location or ATP cannot be used.
D) It has a particular binding place that facilitates the removal of calcium.
Correct Answer:
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