Crossword

1. microorganism used in brewing and baking industry.
6. The protein covering of some viruses - made up of capsomeres
7. A chemical which kills bacteria and fungi but not virus.
8. An organism which causes disease is known as ____
9. a protein produced by cells in response to an antigen.
10. ____ is the genetic material of organisms.
14. Any one of 20 organic acids, which are the building blocks for proteins.
16. A preparation that is used to stimulate the body's immune response against diseases.
17. used for locomotion.
18. Mycology is the study of ____
19. Robert Hooke first observed thin slices of ___ under his microscope.

2. ____ is the process of converting DNA to RNA
3. A condensed DNA structure normally found in the nucleus of a cell.
4. A variation of a particular strain of virus or infective agent; slightly different in form or function.
5. A virus particle existing freely outside a host cell.
8. An organism that lives in on another living thing.
11. ____ is composed of only one cell.
12. A cell or organism that supports the growth of a parasite or virus.
13. The study of viruses and viral disease.
15. ____ is the sudden change in the DNA sequence.