Question

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Description on polynucleotide chain of DNA.​

Answer 1

Explanation:

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Polynucleotide Chain:

Two nucleotides are linked through 3'-5' phosphodiester linkage to form a dinucleotide. This is referred to as 3'-end of the polynucleotide chain. Sugar and phosphates form the backbone of a polynucleotide chain. The nitrogenous bases linked to sugar moiety project from the backbone.

Answer 2

Answer:

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Each polynucleotide chain consists of a string of nucleotides linked by phosphodiester bonds. A DNA chain consists of nucleotides joined by bonds between phosphate and sugar (= phosphodiester bonds). One end of the chain ends with a phosphate linked to the 5' carbon of the sugar and is called the 5' end.