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Question

What is a hub in a centriole?


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Solution

Hub:

  1. The center of the centriole is a rod-shaped proteinaceous mass called a hub.
  2. The diameter of the hub is 2.5 nm.
  3. From the hub, nine proteinaceous strands develop into the surrounding triplet fibrils known as spokes or radial fibrils.

The pattern of microtubule organization of centrioles is

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