Both DNA and RNA found in

Discussion in 'AIIMS Nov 2013' started by samuel, Dec 17, 2014.

  1. samuel

    samuel New Member

    Both DNA and RNA found in
    a) Bacteria
    b) Prion
    c) Viriod
    d) Plasmid

    Answer: Bacteria

    Explanation:
    1. A plasmid is a small, circular, double-stranded
    DNA molecule that is distinct from a cell’s
    chromosomal DNA. Plasmids naturally exist in
    bacterial cells, and they also occur in some
    eukaryotes.
    2. Viroids are plant pathogens that consist of a
    short stretch of highly complementary, circular,
    single-stranded RNA.
    3. A prion is an infectious agent composed of
    protein in a mis-folded form. Prion diseases or
    transmissible spongiform encephalopathies
    (TSEs) are a family of rare progressive
    neurodegenerative disorders that affect both
    humans and animals.

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