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Which of the following events occurs during muscle contraction?
A) H zone decreases or disappears
B) A band widens
C) I band reduces in width
D) Myosin head hydrolyses ATP
E) Z lines attached to actins are pulled inwards
Choose the correct answer from the options given below.

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A, B, C and D only

A, C, D and E only

B, C, D and E only

B, C and E only

answer is B.

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Detailed Solution

A band length remains same.

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