Biology · CELL THE UNIT OF LIFE

The given diagrammatic representation (Figure 8.10) shows the cross-section of a eukaryotic flagellum/cilium. Which statement correctly identifies the components and microtubular geometry of this axoneme?

1. A
   It possesses 9 peripheral single microtubules and 2 central triplets enclosed in amorphous pericentriolar satellite material.
2. B
   It exhibits a \( 9+0 \) pattern where nine triplets are directly fused to the plasma membrane without any radial spokes.
3. C
   It consists of 18 radial spokes connected directly to the outer plasma membrane without forming interdoublet bridges.
4. D
   It possesses an axoneme with nine doublets of radially arranged peripheral microtubules and a pair of centrally located microtubules (\( 9+2 \) array) enclosed by a central sheath.