NEET Biology question

Which statement is correct for muscle contraction?

(A)Length of H-zone is decreased
(B)Length of A-band remains constantCorrect
(C)Length of I-band gets increased
(D)Length of two Z-line get increased

Answer: (B)

Solution

During contraction the thin filaments slide further over the thick filaments, so the H-zone and I-band both shorten and the distance between the two Z-lines of a

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Question ID VK-116890