What is 9+2 ultrastructure?
Dear Student,
The Axoneme is the core or the internal portions of the cilia and the flagella. Axoneme contains microtubules. There are 9 pairs of peripheral microtubules and one pair of central microtubules. This arrangement is called 9 + 2 array.
![](https://s3mn.mnimgs.com/img/shared/userimages/mn_images/image/9+2 arrangement.png)
Hope this answers your question,
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