A) hydrogen bond
B) covalent bond
C) van der Waals forces
D) electrovalent bond
Correct Answer: B
Solution :
Adjacent nucleotides are .joined together by phosphodiester bond to form polynucleotide chain. These phosphodiester bonds are covalent bonds, which are formed between C-3 and C-5 of different deoxyribose sugars of two adjacent nucleotides.
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