Final answer:
Scientists have used various experiments to detect oncogenes using cultured cells, including incubating cells with radioactive thymine and using a light-sensitive emulsion on slides. Additionally, changes in epigenetic regulation, transcription, and protein translation can be studied to detect oncogenes.
Step-by-step explanation:
Cancer biologists have used a variety of experiments to detect oncogenes using cultured cells. One method involves incubating the cells with a radioactive base called ³H-thymine, which the cells incorporate into their DNA. Another method uses a light-sensitive emulsion on slides to visualize the presence of oncogenes. Additionally, scientists study changes in epigenetic regulation, transcription, RNA stability, protein translation, and post-translational control to detect oncogenes.