uracil

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uracil

 [u´rah-sil]

u·ra·cil (Ura, U),

(yūr'ă-sil),
Pyrimidine (base) present in ribonucleic acid.

uracil

/ura·cil/ (ūr´ah-sil) a pyrimidine base, in animal cells usually occurring condensed with ribose to form the ribonucleoside uridine; the corresponding deoxyribonucleoside is deoxyuridine. Symbol U.

uracil

(yo͝or′ə-sĭl)
n. Abbr. U
A pyrimidine base, C4H4N2O2, that is an essential constituent of RNA.

uracil

a pyrimidine base found in RNA. Pairs with adenine. See also thymine.

uracil

One of the 2 nitrogenous pyrimidine bases in RNA, which pairs with adenine and combines with ribose.

u·ra·cil

(U) (yūr'ă-sil)
A pyrimidine (base) present in ribonucleic acid.

uracil

One of the four bases that form the nucleotide code in RNA.
Uracilclick for a larger image
Fig. 310 Uracil . Molecular structure.

uracil

one of four types of nitrogenous bases found in RNA, having the single-ring structure of a class known as PYRIMIDINES. Formula: C4H4N2O2. See Fig. 310 . Uracil always forms complementary pairs with a base called adenine in DNA (during TRANSCRIPTION) or RNA (during TRANSLATION).

u·ra·cil

(yūr'ă-sil)
Pyrimidine (base) present in ribonucleic acid.

uracil

U; Ura; a pyrimidine base found in nucleic acids.