cytosine


cy·to·sine

noun \ˈsī-tə-ˌsēn\

Definition of CYTOSINE

:  a pyrimidine base C4H5N3O that codes genetic information in the polynucleotide chain of DNA or RNA — compare adenine, guanine, thymine, uracil

Origin of CYTOSINE

International Scientific Vocabulary cyt- + -ose + 2-ine
First Known Use: 1894

cy·to·sine

noun \ˈsīt-ə-ˌsēn\   (Medical Dictionary)

Medical Definition of CYTOSINE

: a pyrimidine base C4H5N3O that codes genetic information in the polynucleotide chain of DNA or RNA—compare adenine, guanine, thymine, uracil

Illustration of CYTOSINE

cytosine

noun    (Concise Encyclopedia)

Organic compound of the pyrimidine family, often called a base, consisting of a single ring, containing both nitrogen and carbon atoms, and an amino group. It occurs in combined form in nucleic acids and several coenzymes. In DNA its complementary base is guanine. It or its corresponding nucleoside or nucleotide may be prepared from DNA by selective techniques of hydrolysis.

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