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NEET AIPMT SOLVED PAPER 2001

  • question_answer
                                      Due to discovery of which of the following in 1980's the evolution was termed as RNA world?    

    A)                                                                                                                                                                                            m-RNA, t-RNA, r-RNA synthesize proteins          

    B)                 In some viruses, RNA is genetic material

    C)                 Some RNAs have enzymatic property                    

    D)                 RNA is not found in all cells

    Correct Answer: C

    Solution :

                    Ribozymes, catalytically active RNA molecule discovered in 1980's, are self-splicing introns indicating their possible role as intermediates in the evolution of biological systems from abiotic substances.


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