Definition of uracil in English:

uracil

noun ˈjʊərəsɪlˈjʊrəˌsɪl

mass nounBiochemistry

A compound found in living tissue as a constituent base of RNA. In DNA it is replaced by thymine.
〔生化〕尿嘧啶，二氧嘧啶
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:

uracil

nounˈjʊrəˌsɪlˈyo͝orəˌsil

Biochemistry

A compound found in living tissue as a constituent base of RNA. In DNA its place is taken by thymine.
〔生化〕尿嘧啶，二氧嘧啶
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.

单词	uracil
释义	Definition of uracil in English: uracil noun ˈjʊərəsɪlˈjʊrəˌsɪl mass nounBiochemistry A compound found in living tissue as a constituent base of RNA. In DNA it is replaced by thymine. 〔生化〕尿嘧啶，二氧嘧啶 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: uracil nounˈjʊrəˌsɪlˈyo͝orəˌsil Biochemistry A compound found in living tissue as a constituent base of RNA. In DNA its place is taken by thymine. 〔生化〕尿嘧啶，二氧嘧啶 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.
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