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Biomolecules
Question
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Write the important structural and functional differences between DNA and RNA.

Answer


DNA RNA
1.DNA exists as double helix. 1. RNA exists-as single chain.
2. It is high polymer containing 2500 to 5000 nucleotides. 2. It is relatively smaller polymer containing 75 to 1200 nucleotides.
3.In DNA. the sugar is deoxyribose. 3.In RNA the sugar unit is ribose.
4. The base units in DNA are adenine, guanine, cytosine and thymine. 4. The base units in RNA are adenine, guanine, cytosine and uracil.
5.Uracil is absent in DNA. 5. Thymine is absent in RNA.
6. The hydrolysis products of DNA are phosphoric acid, deoxyribose, the bases A, G, C and T.

6.    The hydrolysis products of RNA are phosphoric acid, ribose and bases A.G, C and U.

 

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