Question

Both centrioles in a centrosome lie .......(i)....... to each other and each of them contains .......(ii)....... peripheral fibril with .......(iii)....... arrangement of microtubules.

• A. (i) parallel (ii) triplet (iii) 9 + 0
• B. (i) perpendicular (ii) doublet (iii) 9 + 2
• C. (i) parallel (ii) doublet (iii) 9 + 0
• D. (i) perpendicular (ii) triplet (iii) 9 + 0

Answer 1

Answer: (D)

A centrosome consists of two centrioles that lie perpendicular to each other. It shows a cart wheel-like arrangement having 9+0 arrangement in which each peripheral fibril is a triplet.