Polynucleotide chain of DNA contains ........

General Science (CDS) Biology

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Polynucleotide chain of DNA contains

a nitrogenous base, deoxyribose sugar and phosphate group

a nitrogenous base, ribose sugar and phosphate group

deoxyribose sugar, ribose sugar and phosphate group

a nitrogenous base and phosphate group onlyc

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Explanation:

The two DNA strands are called polynucleotides because they are composed of simpler monomer units called nucleotides. Each nucleotide is composed of one of four nitrogencontaining nucleobases (cytosine, guanine, adenine or thymine), a sugar called deoxyribose, and a phosphate group.