Give information regarding nucleic acids.

(N/A) $\rightarrow$ In the acid-insoluble fraction of any living tissue,the other type of macromolecule is the nucleic acid.
$\rightarrow$ Together with polysaccharides and polypeptides,these comprise the true macromolecular fraction of any living cell/tissue.
$\rightarrow$ $A$ nucleotide is the building block for nucleic acid. Each nucleotide is formed by three different components: $(i)$ Heterocyclic compound - Nitrogenous base,$(ii)$ Monosaccharide,$(iii)$ Phosphoric acid/phosphate.
$\rightarrow$ The heterocyclic compounds in nucleic acids are the nitrogenous bases: Adenine,Guanine,Uracil,Cytosine,and Thymine. Adenine and Guanine are substituted purines,while Uracil,Cytosine,and Thymine are substituted pyrimidines.
$\rightarrow$ The sugar found in polynucleotides is either ribose or $2^{\prime}$-deoxyribose.
$\rightarrow$ $A$ nucleic acid containing deoxyribose is called deoxyribonucleic acid $(DNA)$,while that which contains ribose is called ribonucleic acid $(RNA)$.