Which of the steps is common to the biosynthesis of a mitochondrial outer membrane protein, a cell-s… Show more Which of the steps is common to the biosynthesis of a mitochondrial outer membrane protein, a cell-surface receptor such as an integrin, and a nuclear protein such as a histone? a. Initiation of translation on a cytosolic ribosome b. Translocation of the peptide chain into the lumen of the ER. c. Progressive modification of the protein as it moves through the Golgi cisterna d. Addition of oligosaccharides in the lumen of the ER. e. None is • Show less