Unit of contraction in a muscle fiber is:
1. Sarcomere
2. Muscle fiber
3. Actin
4. None
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is a sarcomere:
1. Part between two H-line
2. Part between two A-line
3. Part between two I-band
4. Part between two Z-line
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology