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Arrangement of microtubules in a flageli...

Arrangement of microtubules in a flagelium and a centriole is respectively

A

9 + 2 and 9 + 1

B

9 + 1 and 9 + 0

C

9 + 0 and 9 + 7

D

9 + 2 and 9 + 0

Text Solution

Verified by Experts

The correct Answer is:
D
A centriole possesses a whorl of nine peripheral fibrils. Fibrils are absent in the centre. The arrangement is, therefore, called `9 + 0`. Flagellum contans an axoneme of a peripheral doublet fibrils and 2 central singlet fibrils. This arrangement is called `9 +2` or 11 stranded.
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