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 a human cell. This chromosome plays a crucial role in various biological functions and is associated with several genetic traits and disorders. Several important genes are located on chromosome 4, including those linked to 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.