DNA encodes genetic information through sequences of nucleotides, specifically four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G). The order of these bases forms genes, which provide instructions for protein synthesis. Each gene comprises triplet codes, or codons, that specify amino acids, enabling the production of proteins essential for cellular functions. This coding system is fundamental for inherited traits and the biochemical processes within organisms.
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