The main structure of centriole is

Options

A. 9 + 3 fibrils
B. 9 + 2 fibrils
C. Nine triplets
D. 13 globular subunits

Answer

B

Explanation

Each centriole is made up of microtubule triplets which lie evenly spaced in a ring. There is no microtubule at the center giving 9 + 0 patterns for the centriole.