Centrioles, cilia, flagella, and basal bodies have remarkably similar structural elements and arrangements. Which of the following hypotheses is most plausible in light of such structural similarities?

Question

Quizplus · Accepted Answer

The structural similarities suggest a common ancestry or evolutionary relationship between centrioles, cilia, flagella, and basal bodies. The most plausible hypothesis is that cilia and flagella arose from the centrioles, which are known to play a role in organizing microtubules. This is also supported by the fact that centrioles are found in close proximity to basal bodies in ciliated and flagellated cells.

Centrioles, Cilia, Flagella, and Basal Bodies Have Remarkably Similar Structural