<prompt> The common function of Golgi apparatus and endoplasmic reticulum -Protein synthesisProtein degradationPost-transcriptional modificationGlycosylation  <response>: Ans. is d c i.e., Glycosylation Post-translational modification Note: Glycosylation is a critical function of the biosynthetic-secretory pathway in the endoplasmic reticulum ER and Golgi apparatus o Golgi apparatus and ER are involved in glycosylation process o Glycosylation is a type of post-translational modification. 