[Campbell Biology P.165] Based on Figure 6.24, what is the key structural difference between... | Practice Question

Based on Figure 6.24, what is the key structural difference between a motile cilium/flagellum and its basal body regarding the central microtubules?

• A: Motile cilia/flagella exhibit a "9+2" arrangement, including two central microtubules, whereas basal bodies show a "9+0" arrangement because the central microtubules terminate above the basal body.
• B: Both motile cilia/flagella and basal bodies share a "9+2" arrangement, but the central microtubules in basal bodies are non-functional.
• C: Basal bodies have a "9+2" arrangement, while motile cilia/flagella have a "9+0" arrangement.
• D: The central microtubules are completely absent in both motile cilia/flagella and basal bodies.