1. The two centrioles in the centrosome are tied to one another. 2. The sperm contributes a pronucleus and a centriole to the egg. 3. First, the connection between the two parental centrioles is destroyed. 4. The mother centriole has radiating appendages at the proximal end. 5. Centrioles can act as markers for MTOCs in the cell.6. Free microtubules elongate the initial cylindrical structure of procentrioles to form centrioles . 7. Only one procentriole forms next to each centriole during a cell cycle. 8. Glaucophytes have mitochondria with flat cristae, and undergo open mitosis without centrioles . 9. Furthermore, it increases the stability of growing centrioles . 10. The cells of the Archaeplastida typically lack centrioles and have mitochondria with flat cristae. 
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