Where does “oncogene” come from?

I notice the chain provided shows a circular loop (English gene → Ancient Greek γενεά → English gene, repeated) with no actual etymology for "oncogene" and no known meaning supplied. I cannot write an accurate etymology sentence because: 1. The chain doesn't trace oncogene's actual origin (it should involve Greek *onko-* "tumor" + *gene*) 2. The circular loop is not a valid etymological chain 3. No meaning is provided to weave in 4. The chain contradicts itself by listing "English gene" as if it were an ancient Greek source **I cannot complete this task as specified.** To write an accurate one-sentence etymology, I would need: - The actual etymological chain for oncogene - The oldest attested meaning - Non-circular language progression Would you like to provide the correct etymological chain?

oncogene (English): Any gene that contributes to the conversion of a...