| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | pcr (polymerase chain reaction) | laboratory technicians | PCR is a routine and essential method for replicating and amplifying DNA samples used by laboratory technicians. | 1 |
| 2 | pcr (polymerase chain reaction) | scientific research community | PCR is a widely used method in scientific research for amplifying DNA segments for analysis. | 1 |