Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 6 PCB Single Correct MCQ
Published on: August 11, 2026

The actin and myosin filaments can be best explained as

A
when myofilament slide pass each other myosin filaments shorten, while action filaments do not shorten
B
the light band contains actin, whereas the dark band contains myosin
C
the light band contains myosin, whereas the dark band contains actin
D
myosin filaments are thinner as compared to actin filaments

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The correct answer is:
B

Each myofibril has alternate dark and light bands on it. The light band contain actin and is called isotropic band, whereas the dark band contain myosin and is called anisotropic band. The actin filaments are thinner as compared to myosin filaments.

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