nucleotide composition

Nucleotide composition refers to the specific types and amounts of the building blocks—called nucleotides—that make up DNA or RNA. There are four main nucleotides, each with a different chemical base: adenine (A), thymine (T), cytosine (C), and guanine (G) in DNA (uracil replaces thymine in RNA). The overall composition involves measuring how many of each nucleotide are present in a gene or genome. This composition affects the structure, stability, and function of genetic material, influencing processes like gene expression and mutation rates. Understanding nucleotide composition helps scientists study genetics and evolutionary relationships.