Here's why:
* Replication: During DNA replication, each chromosome is copied, resulting in two identical copies called sister chromatids.
* Centromere: The centromere is a constricted region of the chromosome that holds the sister chromatids together.
* Function: The centromere plays a critical role in cell division. During mitosis and meiosis, spindle fibers attach to the centromere, pulling the sister chromatids apart and ensuring that each daughter cell receives a complete set of chromosomes.
Let me know if you have any other questions!
