Workshop 4 Vocabulary 1. Virus 2. Capsid 3. Naked viruses 4. Virion 5. Capsomere 6. Genome 7. Retrovirus 8. Reverse transcriptase 9. Endocytosis 10. Uncoating 11. Budding 12. Exocytosis 13. Oncovirus 14. Bacteriophage (phage) 15. Lysis 16. Lysogeny 17. In vivo 18. In vitro 19. Embryo 20. Cell culture 21. Primary cell cultures 22. Vaccines 23. Prions 24. Creutzfeldt–Jakob disease .