BHU PMT BHU PMT (Screening) Solved Paper-2011

  • question_answer
    Viroids have

    A)  single-stranded RNA not enclosed by protein coat

    B)  single-stranded DNA not enclosed by protein coat

    C)  double-stranded DNA enclosed by protein coat

    D)  double-stranded RNA enclosed by protein coat

    Correct Answer: A

    Solution :

                     Viroids were discovered by Diener and are naked ssRNA viruses affecting plant hosts.


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