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  3. WB JEE Medical

WB JEE Medical WB JEE Medical Solved Paper-2010

  • question_answer
    Which of the following is structural subunit of DNA?

    A)  Protein                               

    B)  Carbohydrate

    C)  RNA                                     

    D)  Nucleotide

    Correct Answer: D

    Solution :

                    Nucleotides are the single units that make up nucleic acids like RNA and DNA, they are building blocks of life. Each nucleotide contains three items: (i) A heterocyclic nucleobase (purines or pyrimidines). (ii) A pentose sugar (ribose for RNA, deoxyribose for DNA). (iii) A   monophosphate,   diphosphate   or tri phosphate.


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