| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | guanine | biology | One of the four main nucleobases found in DNA and RNA | 1 |
| 2 | guanine | biology | One of the four main nucleobases found in the DNA and RNA of all living organisms. | 1 |
| 3 | guanine | biology or chemistry context | Guanine is one of the four main nucleobases found in the nucleic acids DNA and RNA, and it pairs with cytosine. | 1 |