Q. Each myofibrils of muscles contains
A) Regular dark bands
B) Regular light bands
C) Both (a) and (b)
D) Alternate dark and light bands
Explanation
Each myofibrils contains alternate dark and light bands. Light bands contains actin and is called I-band or isotropic band, whereas the dark bands are called A or anisotropic bands containing myosin
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.