The provided sources explore the fundamental nature of life as information, with a particular focus on why DNA serves as the primary genetic storage molecule. They explain how DNA's four-nucleotide system (A, T, G, C) offers an optimal balance between information density and replication accuracy, emphasizing its stability and self-correction mechanisms. The texts also differentiate DNA from RNA, highlighting RNA's use of uracil (U) instead of thymine (T) due to its shorter lifespan and role in temporary information transfer, contrasting with DNA's need for long-term, stable information preservation. Ultimately, the sources describe DNA as life's "original operating system," a meticulously designed language that facilitates both stable inheritance and evolutionary adaptation.

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