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Tuesday 2 February 2010

Nucleic Acid

A 22 years old swiss physician and chemist, Friedrich Miescher isolated a substance from the nuclei of Pus Cells, which was quite different from other bio molecules and named it as Nuclein. Later, it was found that the nuclein had acidic properties and hence it was renamed as nucleic acid.

Nucleic acids are present in all organism, from virus to man these macromolecules are present either in the free- state or bound to proteins as nucleoproteins. Like proteins, the nucleic acids are bio polymers of high molecular weight with monomucleotide as their sub-units (monomers). The nucleic acids are the longs chain of poly nucleotide in which mono nucleotide are linked with each other.

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