Multiple Choice
Which statement about slow-twitch and fast-twitch muscles is true?
A) The first is smooth muscle and the second is skeletal muscle.
B) They express different genes coding for their myosin molecules.
C) Fast-twitch muscles occur only in mammals.
D) They typically have similar numbers of mitochondria per cell.
E) They both compensate for low ATPase activity by recycling their actin-myosin bridges.
Correct Answer:
Verified
Correct Answer:
Verified
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