[Genes of human viruses are less redundant than human genes]

Statistical parameters of nucleotide sequences of mature human RNAs and those of human viruses were compared. The redundancy values of the appropriate genes were compared. The redundancy of virus genes was shown to be, on the average, less than that of human genes. The distribution of human genes according to redundancy values is bimodal, and that of human virus genes is trimodal. This fact suggests possibility of a novel gene classification according to statistical characteristics of nucleotide sequences.