Species Human Chimpanzee Cattle Dog Mouse Zebrafish GC% 0.6029 0.6042 0.5385 0.4659 0.5833 0.3496 AT % 0.2904 0.2693 0.3115 0.3864 0.2992 0.4837

Table 1: GC content and AT content ratio in mRNA sequences in different species.