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. Chemically, this refers to the fact that this particular nucleic acid chain is ribose based and oxygen free. It's role in the human body is unparalleled.
DNA is a chemical known as a nucleic acid. It is so called, because of its usual roles in the nucleus of the biological cell. The large, polymer chains of the DNA molecule are joined together by little tiny chemical rungs of base paris, made up of adenine, guanine, cytosine and thymine. Together paired, these four little chemicals, when properly arranged on a polymer string, form the basis for the genetic coding of the basis of molecular biology, henceforth, the basis of life! Seen just below is the structural arrangement of the paring of the base pairs on the polymer chains.
DNA was first discovered
in 1869 by a Swiss physician named Friedrich Miescher. Originally referred to as 'Nuclein' because of its placement in the nucleus of the cell, it was later dubbed 'DNA' because of its even more obvious chemical structure. Please see the animated arrangement below of the physical appearance of a modeled DNA molecule.
For more information on the nature of Deoxy-Ribo_nucleic Acid, please check out our sister site at:
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