Biology time!

1234567891011121314151617181920212223242526
Across
  1. 1. Protein that recognises specific antigens
  2. 5. Enzyme that cuts DNA at specific sequences
  3. 6. A change in a single DNA base pair
  4. 7. A disease-causing organism
  5. 9. Immunity from exposure, using memory cells
  6. 12. Study of disease patterns in populations
  7. 14. Technique used to copy DNA segments
  8. 15. Cell division producing gametes
  9. 16. Maintaining a stable internal environment
  10. 17. Immune system attacks the body's own cells
  11. 19. White blood cell that engulfs pathogens
  12. 20. The location of a gene on a chromosome
  13. 22. Having two identical alleles for a gene
  14. 23. Exchange of genetic material between homologous chromosomes
  15. 26. Stimulates immunity using a weakened pathogen
Down
  1. 2. Transfer of a pathogen to a host
  2. 3. An organism's observable characteristics
  3. 4. Cancer spreading to other body parts
  4. 8. Non-cellular agent that needs a host to replicate
  5. 9. Molecule that triggers an immune response
  6. 10. Heterozygote shows an intermediate phenotype
  7. 11. Programmed cell death
  8. 13. Enzyme that unwinds the DNA double helix
  9. 18. Genome altered using biotechnology
  10. 21. Gene-editing tool from a bacterial immune system
  11. 24. Carries and transmits a pathogen unaffected
  12. 25. Circular bacterial DNA used as a vector