How do DNA base pairs encode information in human genes?

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In human genetics, DNA base pairs encode information through the specific linear sequence of nucleotides along the DNA molecule. These nucleotides contain one of four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).1234

The information is organized into units called codons, which consist of three adjacent nucleotides. During the process of transcription, this DNA sequence is copied into messenger RNA (mRNA), where thymine is replaced by uracil.1256

During translation, the cell’s ribosomes read these mRNA codons to determine the sequence of amino acids in a protein. Because there are 64 possible codon combinations but only 20 amino acids, the genetic code is degenerate, meaning multiple codons can specify the same amino acid. This precise arrangement of bases serves as the fundamental blueprint for the molecular and physical characteristics of the human organism.5617