• Question: What is spliced to form mRNA?

    Asked by LAD to Steph on 8 Mar 2015.
    • Photo: Stephanie Dyson

      Stephanie Dyson answered on 8 Mar 2015:

      So in a DNA sequence there are regions called introns and exons. The introns are non-coding meaning that they will not form mRNA. Exons are coding meaning that if they join together they can form mRNA but in a DNA sequence they are separated by the introns. For the mRNA to be formed, these introns need to be spliced to allow the exons to join together.

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