Codon bias and Nc values (range from 20 to 61) are inversely proportional. The gene with no codon bias has Nc value 61. Conversely, the more biased gene will use all the codons and the Nc value will be 20. The analysis of Nc value showed a range of 51.1–59.3 with a S.D. of
1.14 suggesting less codon bias in RABV ‘G’ gene.