Chromosome 15 is one of the 23 pairs of chromosomes in humans. It contains about 100 million base pairs and is responsible for various genetic functions. This chromosome plays a crucial role in brain development and function, as well as in regulating certain bodily processes. Mutations or abnormalities in chromosome 15 can lead to several genetic disorders. For example, Prader-Willi syndrome and Angelman syndrome are both linked to this chromosome. These conditions can affect physical health, cognitive abilities, and behavior, highlighting the importance of chromosome 15 in human genetics.