KVPY Sample Paper KVPY Stream-SX Model Paper-21

  • question_answer
    Viroids have

    A) ssRNA not enclosed by protein coat

    B) ssDNA not enclosed by protein coat

    C) dsDNA enclosed by protein coat

    D) dsRNA enclosed by protein coat

    Correct Answer: A

    Solution :

    Viroids are small, single-stranded, circular RNA molecules not enclosed by protein coat. They were discovered by TO Diener in 1971. Viroid replication requires host encoded RNA polymerase.


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