| 释义 |
Definition of uracil in English: uracilnoun ˈjʊərəsɪlˈjʊrəˌsɪl mass nounBiochemistry A compound found in living tissue as a constituent base of RNA. In DNA it is replaced by thymine. A pyrimidine derivative; chemical formula: C₄H₄N₂O₂ Example sentencesExamples - Several transformants were obtained by their ability to grow in minimal medium without uracil and uridine but supplemented with arginine.
- He and his group have found that folate deficiency breaks chromosomes due to massive incorporation of uracil into human DNA.
- Thymine, present in DNA, and uracil, present in RNA, also contribute to this band.
- RNA has the same set of four bases, except that instead of thymine, RNA has uracil - commonly referred to as U.
- The nitrogen-containing units are the bases: adenine, cytosine, guanine, and uracil.
Origin Late 19th century: from ur(ea) + ac(etic) + -il. Definition of uracil in US English: uracilnounˈjʊrəˌsɪlˈyo͝orəˌsil Biochemistry A compound found in living tissue as a constituent base of RNA. In DNA its place is taken by thymine. A pyrimidine derivative; chemical formula: C₄H₄N₂O₂ Example sentencesExamples - Several transformants were obtained by their ability to grow in minimal medium without uracil and uridine but supplemented with arginine.
- Thymine, present in DNA, and uracil, present in RNA, also contribute to this band.
- He and his group have found that folate deficiency breaks chromosomes due to massive incorporation of uracil into human DNA.
- The nitrogen-containing units are the bases: adenine, cytosine, guanine, and uracil.
- RNA has the same set of four bases, except that instead of thymine, RNA has uracil - commonly referred to as U.
Origin Late 19th century: from ur(ea) + ac(etic) + -il. |