Biology · CELL THE UNIT OF LIFE
हिन्दीA eukaryotic cilium axoneme has a \( 9+2 \) arrangement of microtubules, whereas a centriole shows a \( 9+0 \) cartwheel arrangement. How many individual protofilament-forming microtubules constitute the peripheral fibrils in a single cilium axoneme and a single centriole barrel, respectively?
Correct answer · Option 1
18 and 27
Explanation
Peripheral fibrils in cilium axoneme consist of 9 doublets: \( 9 \times 2 = 18 \) microtubules. Centriole peripheral fibrils consist of 9 triplets: \( 9 \times 3 = 27 \) microtubules.