A characteristic 9 + 2 arrangement of microtubules, consisting of nine doublet microtubules surrounding a pair of single microtubules describes the ultrastructure of which of the following cellular structures?
A) bacterial flagella
B) eukaryotic flagella and motile cilia
C) eukaryotic flagella, motile cilia, and nonmotile cilia
D) centrioles and basal bodies

Question

Quizplus · Accepted Answer

The 9 + 2 arrangement of microtubules is characteristic of eukaryotic flagella and motile cilia, which are structures involved in cell movement or the movement of fluids over cell surfaces.

A Characteristic 9 + 2 Arrangement of Microtubules, Consisting of Nine