nucleotide sequences

Nucleotide sequences are the specific arrangements of molecules called nucleotides that make up DNA and RNA, the instructions for all living things. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base. The order of these bases (such as A, T, C, and G in DNA) forms a code that determines inherited traits and guides cell functions. Think of it like a biological blueprint or instruction manual, where the sequence dictates how proteins are built and how life processes are carried out. This sequence is precise and vital for the functioning and reproduction of organisms.