Definition of cytosine in English:
cytosine
noun ˈsʌɪtəsiːnˈsaɪdəˌsin
mass nounBiochemistry A compound found in living tissue as a constituent base of DNA. It is paired with guanine in double-stranded DNA.
A pyrimidine derivative; chemical formula: C₄H₅N₃O
Example sentencesExamples
- During DNA replication, DNA polymerase incorporates unmethylated cytosine opposite to guanine, leading to an overall reduction in methylation of DNA.
- Isochores were defined as long genomic segments that are fairly homogeneous in their guanine and cytosine composition.
- The derivatives of purine are called adenine and guanine, and the derivatives of pyrimidine are called thymine, cytosine and uracil.
- In DNA the bases pair to form a ladder-like structure, with adenine paired with thymine and guanine with cytosine.
- The nitrogen-containing units are the bases: adenine, cytosine, guanine, and uracil.