Question

Microtubules are absent in:

• A. Mitochondria
• B. Flagella
  
• C. Spindle fibres
• D. Centriole

Answer 1

The correct option is A Mitochondria

Microtubules are present in centrioles, flagella, and spindle fibres.
Centrioles are made of 9 sets of radially arranged groups of microtubules.
Eukaryotic flagella have basal bodies that are made of centrioles, and hence microtubules.
Spindle fibres arising from the centrioles are the microtubules that connect to the chromosome.


There are no microtubules inside the mitochondria, however, mitochondria may be associated with microtubules on their outer surface.