DNA is dioxyribonucleic acid. It is a single helix model of encoded gene.
DNA is a polymer and it consists two polynucleotide chain. Each polynucleotide chain consists with monomar called nucleotide.
Each nucleotide consists with nitrogen containing nucleobase, dioxyribose and phosphate. Nucleobases are cystne, thymin, Adenine, guanine.
Nucleotide are joint to each other by a bond is called phosphodiester linkage. It is a covalent bond.
Again, Hydrogen bond connect two polynucleotides and forms double strand DNA.
Nitrogen bases are divided into two groups. Single ringed pyrimidine and double ringed Purin.
Function of DNA
DNA carries genetic information and performs the functional work like development, growth, functioning and reproduction.
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