In DNA, thymine (often abbreviated as "T") is one of the four nucleotide bases, alongside adenine (A), cytosine (C), and guanine (G). Thymine pairs with adenine through two hydrogen bonds, helping to stabilize the DNA structure. It plays a crucial role in encoding genetic information and is essential for DNA replication and transcription. Thymine is unique to DNA, while uracil (U) replaces it in RNA.
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