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Question

An organelle with an internal cross-section showing characteristic "9+2" array is the _________.

A
Microtubule
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B
Microfilament
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C
Cilium or Flagellum
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D
Cytoskeleton
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Solution

The correct option is C Cilium or Flagellum
The axoneme of cilium of flagellum usually has nine pairs of doublets of radially arranged peripheral microtubules, and a pair of centrally located microtubules. Such an arrangement of axonemal microtubule is referred to as 9+2 array.

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