DNA sequences

DNA sequences are strings of individual units called nucleotides, which are represented by the letters A, T, C, and G. These sequences form the instructions within an organism’s cells that determine how it develops, functions, and reproduces. Think of DNA as a biological blueprint or code, where the order of the letters guides the production of proteins, the building blocks of life. Variations in these sequences can influence traits and health. Overall, DNA sequences carry the detailed genetic information that makes each living thing unique.