Wednesday, 13 August 2014

NUCLEIC ACIDS:: PART 5

DNA (Deoxyribose Nucleic Acid)

-          It is polymer of nucleotide monomers joined by phosphodiester bonds.

-          Purines and Pyrimidines carry genetic information whereas pentose sugar and phosphate group perform structural role.

-          In a DNA phosphodiester bond is formed between 5’phosphate group of one nucleotide and 3’hydroxyl group of another nucleotide.
                                         
-          This contains four nitrogenous bases adenine, guanine, thymine and cytosine.
                                                

-          RNA is similar but it has Uracil in the place of thymine.

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