11. It could have applications in every disease, Oncogene said. 12. But he says that viruses insert their DNA into oncogenes extremely rarely. 13. All the oncogenes identified by researchers presented obvious targets for drug companies. 14. An oncogene is a gene that normally directs cell growth. 15. Duesberg disputes the importance of oncogenes and retroviruses in cancer. 16. Pheochromocytoma linked to MEN II can be caused by RET oncogene mutations. 17. MYCN oncogene amplification within the tumor is a common finding in neuroblastoma. 18. Two primary sources of resistance are the T790M Mutation and MET oncogene . 19. Furthermore, oncogenes were found initially in retroviruses and then in cells. 20. Another gene, ETS2 is Avian Erythroblastosis Virus E26 Oncogene Homolog 2.