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Centrioles nine sets
publish date: 2026/06/15 21:36:52.217410 UTC
Centrioles are cylindrical structures found near the nucleus in animal cells. They have a characteristic internal composition.
Centrioles are composed of nine sets of (1), all arranged lengthwise to create a (2) structure.
Please drag and drop the selected option in the right place or type it instead
spherical
cylindrical
triplets
doublets
Correct Answer
(1) triplets
(2) cylindrical
Explanation
Centrioles are composed of nine sets of triplets of microtubules - each triplet being a group of three fused microtubules - all arranged lengthwise to create a cylindrical structure. When viewed in a transverse (cross) section, this arrangement looks like a pinwheel.
Reference
Biology: A Self-Teaching Guide