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4 Written questions

4 Multiple choice questions

  1. consists of a protein coat & a nucleic acid core.
  2. viral DNA become integrated into the host cell's DNA.
  3. is the protective outer coat.
  4. bacterial viruses with a polyhedral head & a helical tail.

4 True/False questions

  1. virusescontains only a nucleic acid.


  2. the study of virusesis a part of biology because they are active inside living cells.


  3. viroidhave nuclei & organelles.


  4. Tobacco virusconsists of a protein coat & a nucleic acid core.


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