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  1. In cross section each centriole consists of a cylindrical array of how many microtubules?

  2. A.

     9

    B.

     8

    C.

     7

    D.

     6

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    Answer : Option A

    Explanation :

    Centrioles are built from a cylindrical array of 9 microtubules, each of which has attached to it 2 partial microtubules.


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