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What is deoxyribonucleic acid

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DNA consists of deoxyribose sugar. Its structure was discovered by J.Watson and F.Crick in 1953. It is long double stranded molecule consisting of two chains. Each chain is made up of sugar, phosphate and a base. The sugar and phosphate groups make the backbone of the chains and two chains are linked through bases. The chains are wrapped around each other in a double helix form.

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