Oncogenes rhymes with:
benes, neni's, benes, buenos-aires, coyotes, defreese, earpiece, haris, heidi's, justiss, makepeace, marquiss, matisse, neni's, parretti's, tebelskis, therese, todi's, tucci's
Oncogenes sounds like:
omissions, omnicom's, oncoming, ongoing