STANDARDZoology-Muscle Physiology
STANDARD Zoology Muscle Structure MCQ Question
Type: MCQ-conceptual-Medium
The H-zone in the skeletal muscle fibre is due to
A
Extension of myosin filaments in the central portion of the A-band
B
The absence of myofibrils in the central portion of A-band
C
The central gap between myosin filaments in the A-band
D
The central gap between actin filaments extending through myosin filaments in the A-band
Correct Answer
Option D
Detailed Explanation
H-zone is the non-overlapping region of myosin or thick filament which either reduces or completely disappears during muscle contraction.
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