Crossword

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Across
  1. 8. microorganism used in brewing and baking industry.
  2. 10. A variation of a particular strain of virus or infective agent; slightly different in form or function.
  3. 12. ____ is the sudden change in the DNA sequence.
  4. 13. ____ is the process of converting DNA to RNA
  5. 14. Robert Hooke first observed thin slices of ___ under his microscope.
  6. 18. An organism which causes disease is known as ____
  7. 19. The study of viruses and viral disease.
Down
  1. 1. ____ is composed of only one cell.
  2. 2. A cell or organism that supports the growth of a parasite or virus.
  3. 3. used for locomotion.
  4. 4. Any one of 20 organic acids, which are the building blocks for proteins.
  5. 5. A preparation that is used to stimulate the body's immune response against diseases.
  6. 6. An organism that lives in on another living thing.
  7. 7. A virus particle existing freely outside a host cell.
  8. 9. Mycology is the study of ____
  9. 11. A chemical which kills bacteria and fungi but not virus.
  10. 14. The protein covering of some viruses - made up of capsomeres
  11. 15. ____ is the genetic material of organisms.
  12. 16. a protein produced by cells in response to an antigen.
  13. 17. A condensed DNA structure normally found in the nucleus of a cell.