12th Class Biology Molecular basis of inheritance

  • question_answer 15)     In a DNA strand the nucleotides are linked together by (a) glycosidic bonds                                                         (b) phosphodiester bonds (c) peptide bonds                                                            (d) hydrogen bonds

    Answer:

                          (b) (In a DNA strand the nucleotides are linked together by 3'-5' phosphodiester linkage(bonds) to form a dinucleotide. More nucleotides can be joined in such a manner to form a polynucleotide chain.

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