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Best Answer: DNA or known as Deoxyribonucleic Acid consists of two chains, strands composed of a large number of chemical compounds, called nucleotides, linked together to form a chain.These chains are arranged like a ladder that has been twisted into the shape of a winding staircase, called a double helix.est Answer: DNA or known as Deoxyribonucleic Acid consists of two chains, strands composed of a large number of chemical compounds, called nucleotides, linked together to form a chain.
DNA is composed of nucleotides bounded together by a backbone and connected at the center by hydrogen bonds. A nucleotide is made up of three parts: a phosphate group, a 5 carbon sugar (deoxyribose in DNA), and a nitrogenous base (adenin, thymine, guanine or cytosine).DNA is a nonparallel molecule, so the composition of the backbone is a combination of the phosphate and sugar molecule that composes the nucleotide.NA is composed of nucleotides bounded together by a backbone and connected at the center by hydrogen bonds. A nucleotide is made up of three parts: a phosphate group, a 5 carbon sugar (deoxyribose in DNA), and a nitrogenous base (adenin, thymine, guanine or cytosine).