SPACEFILLING DNA ATOMIC MODEL<br />
DNA Is A Polymer Chain Of Nucleotides<br />
Nucleotides bonded through phosphodiester linkages make up the primary structure of deoxyribonucleic acid. The sum of the %'s of A (adenine) &amp; G (guanine), purine bases, equals the sum of the %'s of C (cytosine) &amp; T (thymine), pyrimidine bases.