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Uracil (/ ˈ j ʊər ə s ɪ l /) (symbol U or Ura) is one of the four nucleotide bases in the nucleic acid RNA.The others are adenine (A), cytosine (C), and guanine (G). In RNA, uracil binds to adenine via two hydrogen bonds.In DNA, the uracil nucleobase is replaced by thymine (T). Uracil is a demethylated form of thymine.. Uracil is a common and naturally occurring pyrimidine derivative. [2]
6 ημέρες πριν · Uracil (U) is one of the four nucleotide bases in RNA, with the other three being adenine (A), cytosine (C) and guanine (G). In RNA, uracil pairs with adenine. In a DNA molecule, the nucleotide thymine (T) is used in place of uracil.
RNA consists of four nitrogenous bases: adenine, cytosine, uracil, and guanine. Uracil is a pyrimidine that is structurally similar to the thymine , another pyrimidine that is found in DNA.
Uracil is structurally similar to thymine but lacks a methyl group, making it unique to RNA. During the transcription process, uracil pairs with adenine through hydrogen bonds, facilitating the synthesis of RNA from a DNA template.
