Before revision:  We develop a  theoretical framework for addressing this question that is based on: (1) considering a computational model for the flow of ribosomes along the mRNA, called the ribosome flow model, but with rates that are random variables ;
After revision:  We develop a new theoretical framework for addressing this question that is based on: (1) considering a computational model for the flow of ribosomes along the mRNA, called the ribosome flow model, but with rates that are random variables ;