Flagella, cilia and centrioles are all built from the same structural element. That element is:
AMicrofilaments
BMicrotubules
CMicrovilli
DMicrospores
Answer & Solution
Correct answer: B. Microtubules
1. The same fibre type builds all three.
2. It is the thickest of the three fibres.
3. They are microtubules.
_Source: OpenStax Biology 2e, Chapter 4, Cell Structure._
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