The "9 + 2" pattern of the axoneme is nine ________ of microtubules and two additional microtubules in the center called the ________.
A)outer doublets; central pair
B)basal bodies; inner two
C)central tubules; double pair
D)circular structures; middle two
E)triplet groups; basal bodies

Question

Quizplus · Accepted Answer

The "9 + 2" pattern of the axoneme refers to the arrangement of microtubules in a structure called the axoneme, which is found in cilia and flagella. The pattern consists of nine doublets of microtubules arranged in a circle around two additional microtubules in the center called the central pair. Therefore, the best choice is A, which correctly identifies the nine outer doublets and the two central microtubules.

The "9 + 2" Pattern of the Axoneme Is Nine