Q. 1. In DNA strand the nucleotides are linked together by
(a) glycosidic bonds
(b) phosphodiester bonds
(c) peptide bonds
(d) hydrogen bonds
(b) (In a DNA strand the nucleotides are linked together by 3'-5' phosphodiester linkage (bonds) to form a dinucleotide. Can be joined in such a manner to form a polynucleotide chain.
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