Ch 24

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