Botany - Cell - The Unit of Life Question with Solution | TestHub

The electron microscopic study of a cilium or the flagellum shows that they are covered with the plasma membrane. Their core called the axoneme, possesses a number of microtubules running parallel to the long axis. The axoneme usually has nine doublets of radially arranged peripheral microtubules, and a pair of centrally located microtubules. Such an arrangement of axonemal microtubules is referred to as the 9+2 array.