In short, the mRNA copy of a DNA sequence (with the replacement of Uracil for Thymine) then attaches to a ribosome (after it moves out of the nucleus and into the cytoplasm of the cell), and a molecule called a tRNA molecule will bring in the respective anti codons for each codon with the DNA sequence. The end goal of translation is the formation of a polypeptide, or a protein which is then used in various places of the body depending on the function of that protein.