Which of the following is true?

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    Viruses cannot reproduce outside a host cell.
    Prions are infectious proteins.
    Viroids lack a protein coat.
    Some viruses cause cancer.
    all of the above

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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all of the above
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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