Centrosomes
Yes, centrosomes are made up of a pair of centrioles: [1, 2, 3]
Centrosomes
These organelles are located in the cytoplasm of animal cells, next to the nucleus. Each centrosome contains two centrioles, which are barrel-shaped organelles made of microtubules. [1, 3, 4]
Centrioles
The two centrioles in a centrosome are usually oriented perpendicular to each other. One is older and called the mother or mature centriole, while the other is younger and called the daughter or immature centriole. [2, 3]
Pericentriolar material (PCM)
The centrioles are surrounded by an electron-dense matrix called the pericentriolar material (PCM). The PCM increases in size during mitosis and helps assemble the mitotic spindle. [2, 5]
Cell division
During cell division, the centrioles move to opposite ends of the nucleus. They form the areas where the mitotic spindle forms, which attaches to the chromosomes and pulls them apart. [1]
Centrioles are essential for cell division and centrosome duplication. An inadequate number of centrosomes can lead to genome instability and loss of tissue differentiation. An excess of centrosomes is common in human tumors. [1, 5, 6]
Source:
[1] https://www.genome.gov/genetics-glossary/Centriole
[2] https://pmc.ncbi.nlm.nih.gov/articles/PMC2883084/
[3] https://www.cell.com/current-biology/fulltext/S0960-9822(99)80201-2
[5] https://www.sciencedirect.com/science/article/pii/S1534580719305222
[6] https://en.wikipedia.org/wiki/Centrosome