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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 made up of four base chemicals, adenine, guanine, cytosine and thymine. These pair with each another to form a double-helix structure. DNA is passed down from parent to child through chromosomes. Each human cell has 46 chromosomes, half inherited from the mother and half from the father.