The microtubule arrangement in the axoneme of eukaryotic cilia and flagella is
A9 + 0
B9 + 2
C11 + 2
D7 + 2
Answer & Solution
Correct answer: B. 9 + 2
The classic axoneme has nine peripheral doublets surrounding a central pair of microtubules — the 9+2 pattern. Centrioles, by contrast, use the 9+0 pattern with no central pair.
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