Unit of contraction in a muscle fiber is:
1.  Sarcomere
2.  Muscle fiber
3.  Actin
4.  None

Subtopic:  Skeletal Muscle: Sarcomere |
 93%
Level 1: 80%+
AIPMT - 1998
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What 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

Subtopic:  Skeletal Muscle: Sarcomere |
 82%
Level 1: 80%+
AIPMT - 2001
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