Question

What does the term "9+2" mean in cell biology?

Answer 1

Flagella and cilia of eukaryotic cells possess a cytoskeleton at core. It is termed axoneme and is made of microtubules. In the cross section axoneme shows a peripheral ring of 9 microtubular structures and 2 central microtubules.

Explanation:

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Microtubules are made up of protein tubulin.