$A$: 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.

Fungal flagellum originates from

What is the structural arrangement of the axoneme in cilia and flagella?

Study the following statements on cilium or flagellum and answer the question.
$(i)$ Cilium / Flagellum contains an outer ring of nine doublet microtubules surrounding two singlet microtubules.
$(ii)$ Cilia are smaller which work like oars,causing the movement of either the cells or surrounding fluid.
$(iii)$ Flagella are comparatively longer and responsible for cell movement.
$(iv)$ Cilium and flagellum are covered with plasma membrane. Which of the above statements are correct?

Nerve cells do not divide because they do not have

Which organelle is associated with the formation of the bipolar spindle during cell division?