Before revision:  Based on one of the methods which might be employed in most of the experiments} , we find that , roughly speaking, this translational ratio decays exponentially with mRNA length in prokaryotic cell, and reciprocally with mRNA length in eukaryotic cells  .
After revision:  Based on one of the methods which might be employed in most of the experiments} , we find that , roughly speaking, this translational ratio decays exponentially with the length of mRNA in prokaryotic cells, and decays reciprocally with the length of mRNA in prokaryotic cell, and reciprocally with mRNA length in eukaryotic cells .