Chapter 28, Problem 28.14P

Interpretation Introduction

Interpretation:

The reason for deoxyribo nucleic acids called acids and the acidic groups present in their structure has to be explained.

Concept Introduction:

The nucleotides are linked together to form the DNA molecule.  The Nucleotide consists of a Nitrogenous base, Sugar molecule and Phosphate ion.  The Nitrogenous base and sugar molecule are linked by N-glycosidic bond and the sugar molecule and phosphate ion is linked by ester bond.  Two nucleotides are linked together by the phosphodiester bond formed between the $\text{5'}$ end of one nucleotide to $\text{3'}$ end of another nucleotide.  The phosphate ion contains negative charge at neutral $\text{pH}$ giving the whole molecule a negative charge.