The human body stores its genetic information in chromosomes. The number of chromosomes and the gene locus on the chromosome is unique to each species. Humans have 23 pairs of chromosomes, 22 pairs of autosomal chromosomes and 1 pair of sex chromosomes that differentiate between males and females. All human chromosomes have 2 arms – the p (short) and the q (long) arm, which are separated by the centromeres.
