Software that decodes the mRNA given by the user into the DNA sequence that originated it. The program applies the rules of the genetic code and uses the sequence of RNA nucleotides to discover the sequence of DNA nucleotides that was used (via tran.
During transcription, RNA will code some sequences of DNA that will not be used to make proteins. These are called introns, which will be spliced (cut out) of the new mRNA sequence. The exons will then be put back together.