 Our methodology is also used to characterize critical control variables in three models of biochemical regulation: the Drosophila melanogaster single-cell segment polarity network , the eukaryotic cell cycle of budding yeast Saccharomyces cerevisiae, and the URLan arrangement in Arabidopsis thaliana.
<clarity>  Our methodology is also used to characterize critical control variables in three models of biochemical regulation: the Drosophila melanogaster single-cell segment polarity network , the eukaryotic cell cycle of budding yeast Saccharomyces cerevisiae, and the URLan arrangement in Arabidopsis thaliana.
 Our methodology is also used to characterize critical control variables in three models of biochemical regulation: the Drosophila melanogaster single-cell segment polarity network in Drosophila melanogaster, the cell cycle of budding yeast Saccharomyces cerevisiae, and the URLan arrangement in Arabidopsis thaliana.