A sarcomere in the myofibrils of muscle is fo | vedclass

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(B) The correct answer is $2$ $Z$-lines.In the myofibrils of muscle,the thick filaments lie parallel to one another,and thin filaments are present in

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$2$ $Z$-lines

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(B) The correct answer is $2$ $Z$-lines.In the myofibrils of muscle,the thick filaments lie parallel to one another,and thin filaments are present in an orderly array between the thick filaments.In the centre of the $I$-band,there is an elastic fibre called the $Z$-line which bisects it.The portion of the myofibril between two successive $Z$-lines is considered as the functional unit of contraction and is called a sarcomere.In the middle of the $A$-band,a comparatively less dark zone called the $H$-zone is present,and the $M$-line is present in the middle of the $H$-zone.

$A$ sarcomere in the myofibrils of muscle is found in between

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