| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | pyrimidine | chemistry | Pyrimidines are vital elements of DNA and RNA, extensively researched in biology and chemistry. | 6 |
| 2 | pyrimidine | biology | Pyrimidines are essential building blocks of DNA and RNA in biology. | 3 |
| 3 | pyrimidine | Organic chemistry | The pyrimidine is the basic structural unit of DNA and RNA molecules studied in organic chemistry. | 1 |