How many of the listed events are post-transcriptional processes that occur after transcription starts but before translation begins in eukaryotes? Addition of a poly-A tail on the 3' end mRNA export to the cytoplasm Scanning down the 5' end of mRNA to locate the first AUG Addition of a 5' cap Promoter binding of RNA polymerase Base pairing between the initiator tRNA anticodon and the start codon Peptide bond formation Binding of the large subunit with the small subunit of ribosome Splicing to remove introns and join exons together