Vocabulary Quiz - 4.2

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Across
  1. 1. Once they grow to a certain size, the DNA inside splits into two ~ (exactly same) structures.
  2. 5. Viruses are ~ unless they find their way into a living host.
  3. 7. make-up, structure, or the way something is made
  4. 10. Bacteria reproduce ~ through cell division.
Down
  1. 2. Viruses, on the other hand, cannot reproduce until they have ~ a host, or attached themselves to a host.
  2. 3. As the virus’ protein shell ~, the genetic information in the virus is released into the cell.
  3. 4. Vaccines introduce a very small ~ of the virus into the body so as to make it immune to viral effects.
  4. 6. Diseases caused by viruses range from the common cold to HIV, and can be either temporary and relatively harmless or life-long and ~ deadly.
  5. 8. However, beyond this common ~, the two differ in a number of important ways.
  6. 9. In viruses, however, these materials are contained not in a cell membrane, but in a thinner outer ~ of proteins.