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Question: Answered & Verified by Expert
According to the sliding filament theory:
BiologyLocomotion and MovementNEETNEET 2022 (Phase 2)
Options:
  • A Actin and myosin filaments slide over each other to increase the length of the sarcomere.
  • B Length of A-band does not change.
  • C I-band increases in length
  • D The actin filaments slide away from A-band resulting in shortening of sarcomere.
Solution:
1579 Upvotes Verified Answer
The correct answer is: Length of A-band does not change.
According to Sliding filament theory, thin. Filament slide over Thick filament (mainly myosin). That is why the length of $\mathrm{A}$ band does not change as A band is made up of thick filament.

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