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Centrosome/ Centrioles

The arrangeme...

Question

The arrangement of outer and central microtubules in a cilium is in

A

9 + 1 pattern

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B

9 + 2 pattern

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C

8 + 2 pattern

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D

8 + 1 pattern

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Solution

The correct option is B 9 + 2 pattern
The flagellum and the cilia are composed of the microtubules. In the cilium, 9 peripheral doublets of microtubules are found which are known as the outer microtubules. The number of central microtubules in a cilium is two. This arrangement of the microtubules is called as the 9 + 2 pattern.
Thus, the correct answer is option B.

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Similar questions

Q. Arrange the following in descending order basing on their numbers.
(A) Number of central microtubules in a cilium
(B) Number of radial spokes in a flagellum
(C) Number of nuclei found in a mature sieve tube cell
(D) Number of peripherals microtubules in a flagellum

Q. Assertion :The arrangement of axonemal microtubules in cilia or flagella is called

9 + 2

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Q. The pattern of microtubule arrangement of cilia and flagella is

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