Which of the following is true of picornaviruses?

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    More than one of the above, but not all, are true.
     They contain a single stranded, positive sense RNA genome.
     All of the above are true.
     Among the diseases they cause, is small pox.
     They are among the largest viruses known.
asked May 16, 2012 in Microbiology by anonymous
    

1 Answer

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They contain a single stranded, positive sense RNA genome.
answered May 17, 2012 by Bioshare ~Top Expert~ (34,070 points)

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