Comment on the cartwheel structure of centriole.


Centromere is an organelle usually containing two cylindrical structures called centrioles.


• Both the centrioles in a centrosome lie perpendicular to each other in which each has an organisation like the cartwheel.


• They are made of nine evenly spaced peripheral fibrils of tubulin protein.


• Each of the peripheral fibril is a triplet.


• The adjacent triplets are also linked.


• The central part of the proximal region of the centriole is also proteinaceous and called the hub.


• The hub is connected with the tubules of the peripheral triplets by radial spokes made up of protein.


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