NEET Biology question

Which of the following is correct regarding the structure of a section of cilia/flagella?

(A)Peripheral microtubules (doublets) = 9+0, Central microtubules (singlets) = 2, Radial spokes = 8, Central sheath = 1
(B)Peripheral microtubules (doublets) = 9+2, Central microtubules (singlets) = 9, Radial spokes = 0, Central sheath = 1
(C)Peripheral microtubules (doublets) = 9, Central microtubules (singlets) = 2, Radial spokes = 9, Central sheath = 1Correct
(D)Peripheral microtubules (doublets) = 3, Central microtubules (singlets) = 6, Radial spokes = 9, Central sheath = 1

Answer: (C)

Solution

A typical ciliary/flagellar axoneme has 9 peripheral doublet microtubules surrounding 2 central singlet microtubules, with 9 radial

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Question ID VK-112121