NEET AIPMT SOLVED PAPER 2000

  • question_answer
                    RNA and DNA are similar in:

    A)                 having similar sugars                                      

    B)                 having similar pyrimidine bases

    C)                 being capable to replicate                           

    D)                 being polymers of nucleotides

    Correct Answer: D

    Solution :

    DNA composition RNA composition
    (i) Deoxyribose sugar Ribose sugar
    (ii) Adenine, guanine (purine) and cytosine, thymine (pyrimidine), nitrogenous bases. Adenine, guanine (purine) and uracil and cytosine (pyrimidine) nitrogenous bases.
    (iii) Phosphate molecules. Phosphate molecules.
    (iv) It is polymer of nucleotides. It is also polymer of nucleotides.
    (v) It is capable to replicate in all cases because it functions as heredity material. It is formed from DNA by the process of transcription only in few cases (RNA viruses) it functions as heredity material as in viruses.


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