RNA was the first regulatory chemical that evolved at the time of origin of life.In early life forms RNA was the genetic material.The structure of RNA (Ribonucleic Acid) differs from DNA in several important ways, though it shares some similarities as well. Here’s an outline of the structure of RNA: 1. Single-Stranded: Unlike DNA, RNA…
DNA is a long double chain or duplex ‘molecule’ formed of millions of deoxyribonucleotides.DNA duplex has a diameter of 20 A.The duplex is coiled plectonemically in a right handed manner just as rope stair is twisted to form a spiral.this coiling produces alternate major and minor grooves. The structure of DNA (Deoxyribonucleic Acid) is often…
