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| Q. |
In skeletal muscle: |
| A. | thick filaments which are made up of myosin and tropomyosin are lined up to form A bands |
| B. | the dark A band has a light H band in its centre which in turn has an M line in its middle |
| C. | think filaments are made up of actin, tropomyosin and troponin and form the H band |
| D. | Z lines are connected to the thick filaments |
| E. | during contraction, the width of the A band reduces |
| Answer» C. think filaments are made up of actin, tropomyosin and troponin and form the H band | |
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