Now is the elongation stage where the nucleotides are added to the increasing RNA chain. The RNA polymerase moves across the DNA strand and makes sure all complementary base pairing is correct. hydrogen bonds are formed between the bases and their pairs which joins the nucleotides
AUG CCG CAC AUG GCC
UAC GGC GUG UAC CGG
The final step of transcription is termination. The RNA polymerase reaches its termination point when the mRNA transcript is completed. All introns are interweaved out of the RNA strand and the extrons join together. There has to be a 5' cap on either end of the mRNA to prepare the mRNA for the next stage
Finally, the protein will move to the Golgi Apparatus from the Endoplasmic Reticulum where it will be packaged and modified. The protein will eventually leave the Golgi in a vesicle and fuse with the cell membrane where the protein will be released into the body!