Exploring the genes, biological functions and fascinating parent-of-origin effects associated with Human Chromosome 15. Introduction: Why Is Chromosome 15 So Interesting? Human DNA contains 23 pairs of chromosomes, with one chromosome in each pair inherited from each biological parent. These chromosomes carry the genetic instructions that help guide our development, biological functions and individual characteristics. Among them, Chromosome 15 is particularly fascinating because it contains genes involved in neurological development, appetite regulation, connective tissue formation, pigmentation, hormone production and cellular communication. It is also home to one of the best-known examples of a genetic phenomenon called genomic imprinting. This is where certain genes behave differently depending on whether they are…