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Which one of the following structures has a 9 + 2 MT arrangement?

1) A centriole
2) A microvillus
3) A cilium
4) A cleavage furrow
5) A basal body

User JleruOHeP
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1 Answer

3 votes

Final answer:

Option 3) is correct answer. A cilium is the structure that has a 9 + 2 microtubule arrangement, which is a pattern consisting of nine outer doublets and two central microtubules.

Step-by-step explanation:

The structure with a 9 + 2 microtubule arrangement is a cilium. This arrangement consists of a ring of nine microtubule doublets surrounding a pair of central microtubules. Basal bodies, which are similar to centrioles, serve as the foundation for cilia and flagella and provide the anchoring site where the 9 + 2 structure forms. Although a centriole is involved in the organization of microtubules during cell division, it does not have this specific 9 + 2 pattern as it is made up of nine triplets of microtubules.

User Njachowski
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