cytosine

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Related to Cytosine nucleotides: thymine nucleotide

cytosine

 [si´to-sēn]
cytosine arabinoside cytarabine.

cy·to·sine (Cyt),

(sī'tō-sēn),
A pyrimidine found in nucleic acids.

cytosine

/cy·to·sine/ (si´to-sēn) a pyrimidine base occurring in animal and plant cells, usually condensed with ribose or deoxyribose to form the nucleosides cytidine and deoxycytidine, major constituents of nucleic acids. Symbol C.
cytosine arabinoside  cytarabine.

cytosine

(sī′tə-sēn′)
n. Abbr. C
A pyrimidine base, C4H5N3O, that is the constituent of DNA and RNA involved in base-pairing with guanine.

cytosine (C)

[sī′təsin]
a pyrimidine base that is a component of DNA and RNA. In free or uncombined form it occurs in trace amounts in most cells, usually as a product of the enzymatic hydrolysis of nucleic acids and nucleotides. On hydrolysis, it is converted to urea and ammonia. See also thymine, uracil.

cy·to·sine

(Cyt) (sī'tō-sēn)
A pyrimidine found in nucleic acids.

cytosine

A pyrimidine base, one of those forming the genetic code of DNA and RNA.
Cytosineclick for a larger image
Fig. 128 Cytosine . Molecular structure.

cytosine (C)

one of four types of nitrogenous bases found in DNA, having the single-ring structure of a class known as PYRIMIDINES. Cytosine forms part of a DNA unit called a NUCLEOTIDE and always forms complementary pairs with a DNA purine base called a GUANINE. Cytosine also occurs in RNA molecules.

cytosine

a pyrimidine base found in the nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

cytosine arabinoside