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Q. 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 which is proteinaceous

Cell : The Unit of Life

Solution:

• Centrioles are cylindrical structures that lie perpendicular to each other.
• Centrioles have an organisation like cart wheel.
• Centrioles are made up of nine evenly spaced peripheral fibrils of tubulin protein.
• Each peripheral fibril of centriole is triplet.
• Central part of the proximal region of the centriole is called hub.