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- (YOOR-uh-sil) One of four building blocks of ribonucleic acid (RNA), a type of nucleic acid found in all cells. In the cell, RNA is made from DNA (the other type of nucleic acid), and proteins are made from RNA.
National Cancer Institute - Cite This Source - This Definition
- antisense DNA, Antisense RNA, CI-958, Nucleotide, phosphorus-32, ribonucleic acid, RNA
- (Abbreviation: U). One the bases found in RNA. See: uridine.
UN Food and Agriculture Organization - Cite This Source - This Definition
- adenine, base, Base pair (bp), Complementary nucleotides, cytosine, FAD, guanine, nitrogenous base, Nitrogenous bases, purine, pyrimidine, thymine
- One of the four bases in RNA. The others are adenine, guanine, and cytosine. Uracil replaces thymine, which is the fourth base in DNA. Like thymine, uracil always pairs with adenine. See also protein, nucleotide
National Human Genome Research Institute - Cite This Source - This Definition
- A nitrogenous base normally found in RNA but not DNA; uracil is capable of forming a base pair with adenine. See also: base pair, nucleotide
Human Genome Project - Cite This Source - This Definition
- adenine, Adenine (A), base, base pair, Base pair (bp), cytosine, Cytosine (C), DNA (Deoxyribonucleic acid), genetic code (ATGC), guanine, Guanine (G), intellectual property rights, nitrogenous base, Nucleotide, purine, pyrimidine, thymine, Thymine (T)