Q. Number of protofilament in microtubule is
A) 13
B) 12
C) 5
D) 10
Explanation
Microtubules are electron microscopic structures found only in the eukaryotic cellular structures like cilia, flagella, centriole, etc. The wall of microtubule is 50Å thick, which is formed of 13 parallel prototubules.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.