Home › NEET UG › Biology › Locomotion and Movement › Refer to the diagram of a sarcomere:  The dark band rich in myosin is called:
AI-band
BA-band (anisotropic, dark; spans thick filament length)
CH-zone
DZ-line
Answer & Solution
Correct answer: B. A-band (anisotropic, dark; spans thick filament length)
Sarcomere structure: A-band (dark, anisotropic, = thick filament length, contains overlap with actin); I-band (light, isotropic, contains only thin filaments, bisected by Z-line); H-zone (lighter region within A-band, only thick filaments); M-line (center, anchors thick filaments).
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