Question: The KDEL receptors in the Golgi apparatus recognize the ER retrieval signal (KDEL) in the ER residential proteins and shuttle them back to the ER. You are curious where a soluble ER protein would be detected if the KDEL signal is deleted in the mutant protein. To find out the answer, you plan to engineer a plasmid that expresses the GFP-fused ER mutant protein and will transfect the plasmid into a mammalian cell line. Which of the following answers is likely to be correct? Need Assignment Help? Question options: This mutant ER residential protein can't be detected in the ER. This mutant ER residential protein can be detected in the mitochondria. This mutant ER residential protein can only be detected in the ER. This mutant ER residential protein is unlikely to be detected in the nucleus.