17.3 &18.1

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Across
  1. 3. The limited # of a species a virus can infect
  2. 6. Program created to understand DNA
  3. 8. A Protein shell built of capsomeres
  4. 9. A toxic molecular component
Down
  1. 1. # of genes compared with base pairs
  2. 2. A non-living infectious particle
  3. 4. A derivative of a pathogen to fight a virus
  4. 5. Viruses that can infect bacteria
  5. 7. Virus that causes AIDS