Question

The light bands of skeletal muscles are known as

• A. Myosin
• B. Isotropic bands
• C. Intercalated discs
• D. Anisotropic bands

Answer 1

The correct option is B Isotropic bands

Skeletal muscles are also called as striated muscles. The striated appearance is due to the repeating units of bands of the proteins, namely actin and myosin. There are dark bands and light bands that repeat along myofibrils. The dark band is called as A band or Anisotropic band and the light band is called as I band or isotropic band.

Thus, the correct answer is 'Isotropic bands.'