NEET Biology question
Which of the following statement Is/are correct / incorrect? I. A-bands of the muscle is dark and contain myosin. II. I-bands are the light bands and contain actin. III. During muscle contraction, the A-band contracts. IV. The part between the two Z-lines is called as sarcomere. V. The central part of thin filament, not overlapped by thick filament is called H-zone.
Answer: (C)
Solution
Statements I and II correctly describe the dark myosin-containing A-band and the light actin-containing I-band, while statement III is false because the A-band does not change length on contraction and statement V is false because the H-zone is actually the central part of the
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