Q.

The H-zone in the skeletal muscle fibre is due to 

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a

The central gap between actin filaments extending through myosin filaments in the A-band.

b

The central gap between myosin filaments in the A-band.

c

Extension of myosin filaments in the central portion of the A-band.

d

The absence of myofibrils in the central portion of the A-band.

answer is A.

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Detailed Solution

The H-zone in the skeletal muscle fibre is due to the central gap between actin filaments extending through myosin filaments in the A-band.

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