Fill in the blanks :
1 . Centrioles are …a… structures that lie …b… to each other
2 . Centrioles have an organisation like …c…
3 . Centrioles are made up of nine evenly spaced peripheral fibrils of …d… protein
4 . Each peripheral fibril of centriole is ...e...
5 . Central part of the proximal region of the centriole is called ...f... which is proteinaceous