cytosine
pronunciation
How to pronounce cytosine in British English:
UK ['saɪtəʊsi:n]
How to pronounce cytosine in American English:
US ['saɪtoʊˌsin]
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- Noun:
- a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
Word Origin
- cytosine (n.)
- 1894, from German cytosin (1894), from cyto- "cell" + -ose + chemical suffix -ine (2). "The name cytosine (due to Kossel and Neumann) is misleading. Cytosine is not, like adenosine and guanosine, a nucleoside but the sugar-free base." [Flood]
Example
- 1. In a dna molecule , the base adenine sticks to thymine , and guanine pairs with cytosine .
- 2. The team looked at methylation , in which a methyl group is placed onto cytosine in dna sequences .
- 3. Whether cytosine methylation is the explanation for this difference has yet to be tested , but something is clearly happening .
- 4. Anyone who studied a little genetics in high school has heard of adenine , thymine , guanine and cytosine .
- 5. Construction of recombinant adenovirus containing cytosine deaminase gene and the study of its killing effect on pulmonary carcinoma .