Across
- 1. these are the viruses that infect bacteria
- 4. a nonliving particle made up of nucleic acid and a protein coat or nucleic acid and a lipoprotein coat
- 5. (2 words) during this, a virus invades a host cell, produces new viruses, and lyses the host cell
- 6. the inserted viral DNA
- 8. means “rupture”
- 10. (2 words) this enzyme uses RNA as a template to make DNA
- 14. (2 words) during this, viruses hide in their host cell for an extended period of time
- 18. viruses that reproduce only by the lytic cycle are called this
- 19. this type of virus is a weakened form of the virus that cannot cause disease
- 20. a protein coat
- 22. a RNA virus that contains the enzyme reverse transcriptase
Down
- 2. (2 words) illnesses typically caused by new or reappearing infectious agents
- 3. a bilipid membrane
- 7. these genes cause cancer by blocking the normal controls of cell reproduction
- 9. this type of virus is unable to replicate in a host
- 11. a virus whose replication includes the lysogenic cycle is called this
- 12. abnormal forms of natural brain protein
- 13. inflammation of the liver
- 15. these can disrupt plant cell metabolism can damage entire crops
- 16. (2 words) class of drugs that block construction of new viral capsids
- 17. disease that occurs when a provirus stays in nerve cells as a provirus and can emerge later in life
- 18. an intermediate host that transfers a pathogen or parasite to another organism
- 21. gene that usually controls cell growth