Ribonucleic acid (RNA) may be a molecule that's gifted within the majority of living organisms and viruses. it's created of nucleotides, which are ribose sugars connected to chemical element bases and phosphate groups. The nitrogenous bases embody adenine, guanine, uracil, and cytosine. RNA principally exists in the fiber form, however, there are special RNA viruses that are double-stranded.
In order to reply to the query of what number of genes we have, we should first agree on what we imply via way of means of the word “gene”. The definition has developed ever on the grounds that Mendel, however the awareness, because the HGP were given below manner, turned into in general on protein-coding genes;