HIV/AIDS

12345678910111213141516171819202122
Across
  1. 3. 2 types of these to bind to cells
  2. 6. AIDS
  3. 7. eventally this happens to the DNA replicating the HIV DNA as well
  4. 9. what is both the enzymes and RNA surrounded by 2 layers of?
  5. 13. the phrase used to describe how HIV and viruses leave the cell
  6. 15. what AIDS can cause through cancer-kaposi's syndrome or degenerative disease (brain)
  7. 16. does HIV always have an effect?
  8. 17. RNA converted to DNA using this
  9. 20. immune system produces these in blood
  10. 21. genetic material is RNA, contains enzymes to help with replication eg reverse transcriptase
  11. 22. where does HIV replicate?
Down
  1. 1. an example of what the immune system can no longer fight as it has become weak
  2. 2. contact with what is thought to be the cause of the virus in the early 20th century?
  3. 4. where can antibodies not go?
  4. 5. HIV, first recognised in the 1980s
  5. 8. stage one of replication
  6. 10. DNA incorporated into host cells ........... so it is replicated if the cell divides
  7. 11. antibody production is ....... as t-helper cells are needed to stimulate b-cells and other t-cells
  8. 12. host cells membrane that is taken with it as it leaves the cell(viral envelope)
  9. 14. where is the only place that HIV particles can be attacked? This also indicated that a person is HIV positive
  10. 18. is the number of new viruses formed high or low?
  11. 19. HIV causes the functioning of t-helper cells to ........