The central part of the centriole is known as:

In which of the following organisms are centrioles found?

$A$: The axoneme of a eukaryotic flagellum possesses a number of microtubules running parallel to the long axis.
$R$: It has a pair of peripheral doublet and a pair of centrally located microtubules.

Which of the following statements is correct regarding cilia and flagella?

Which organelle consists of two cylindrical structures arranged at right angles to each other?

In the structure of a centriole,the adjacent microtubule triplets are linked by what?