Chromosome 4 is one of the 23 pairs of chromosomes found in humans. It contains about 190 million base pairs and is responsible for carrying approximately 4-5% of the total DNA in the human genome. This chromosome plays a crucial role in various biological functions and is linked to several genetic disorders. Several important genes are located on chromosome 4, including those associated with Huntington's disease and spinal muscular atrophy. Research on chromosome 4 helps scientists understand its role in health and disease, contributing to advancements in genetics and medicine.