In a relaxed fibril, H-zone, a lighter region of low density can be seen in the centre of
" " Or
The dark bands (Black bands) of a skeletal muscle are known as

Options

A. Anisotropic or A–band
B. Isotropic or I–band
C. Z–band
D. Both in A and I–band

Answer

A

Explanation

H – zone is the non overlapping zone of myosin or thick filament. During muscle contraction H–zone completely disappears.