Molecular Basis of Life🔗

Of all the possible combinations of elements, the formation of a specially designed molecule called DNA (Deoxy ribo nucleic acid), became the fundamental mechanism of giving life to otherwise inanimate molecules.

The DNA is a poly-nucleotide chain containing a repetitive back bone of sugar-phosphate units with small organic basies—Adenine, Thymine, Guanine and Cytosine—attached to each sugar.

In human beings, DNA is a long strand measuring almost 2 meters in length, but coiled inside a cell, which is only a few microns in diameter.