noun
- Plural of guanine; a purine base that is one of the four nucleobases in DNA and RNA, paired with cytosine.
Usage: biochemistry; molecular biology
Examples
- Guanines are essential components of the genetic code found in all living organisms.
- The DNA strand contains adenines, thymines, cytosines, and guanines in a specific sequence.
- Scientists studied how guanines pair with cytosines in the double helix structure.
- The ratio of guanines to other bases varies among different species.
- Mutations can occur when guanines are incorrectly replicated during cell division.