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Question
Which option represents the correct structure of a section of cilia / flagella?
Which option represents the correct structure of a section of cilia / flagella?
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Solution
The correct option is C Doublets - 9 ; Central microtubules - 2; Radial Spokes - 9; Central Sheath - 1
The core of the cilia is called the axoneme, possesses a number of microtubules running parallel to the long axis.
The axoneme usually has nine doublets of radially arranged peripheral microtubules, and a pair of centrally located microtubules. Such an arrangement of axonemal microtubules is referred to as the 9+2 array.
The central tubules are connected by bridges and is also enclosed by a central sheath, which is connected to one of the tubules of each peripheral doublets by a radial spoke. Thus, there are nine radial spokes. The peripheral doublets are also interconnected by linkers.
The core of the cilia is called the axoneme, possesses a number of microtubules running parallel to the long axis.
The axoneme usually has nine doublets of radially arranged peripheral microtubules, and a pair of centrally located microtubules. Such an arrangement of axonemal microtubules is referred to as the 9+2 array.
The central tubules are connected by bridges and is also enclosed by a central sheath, which is connected to one of the tubules of each peripheral doublets by a radial spoke. Thus, there are nine radial spokes. The peripheral doublets are also interconnected by linkers.
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