During muscle contraction, which of the following does not occur

No change in length of anisotrophic band

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Decrease in length of isotropic band

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No change in length of A band

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Decrease in length of actin myofilaments

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Solution

The correct option is D Decrease in length of actin myofilaments
During muscle contraction, the length of the A bands or the anisotropic bands does not change, while the I bands or the isotropic bands shorten.

So, the correct answer is 'Decrease in length of actin myofilaments'.

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Similar questions

upon contraction of sarcomere in skeletal muscle fibres , reduction is not observed in?

1. length of actin filaments

2. size of region enclosed by 2 z lines

3. h zone

4. i band

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