In this picture, RNA Polymerase came in and transcribed the DNA into an RNA strand (each base was paired up complimentary.)
After the RNA strand is made a 5' GTP cap is added, and a poly-a-tail is added to the other end... The bases are paired up and read as codons (3 bases).
The ribosome EPA, works from A to E. The ribosome starts at the codon "AUG" and works down from there to a stop Codon (UAA, UAG, UGA), and proteins are made.
TRNA changes the codons to proteins and then a bond is formed between the other protein and the trna is gone. the proteins are released into the cell.