He then asked news organizations to tally up the number of Americans killed through terrorist attacks in the last decade and compare it with the number of Americans who have died in gun violence.
In molecular biology, a reading frame is a way of dividing the sequence of nucleotides in a nucleic acid (DNA or RNA) molecule into a set of consecutive, non-overlapping triplets. Where these triplets equate to amino acids or stop signals during translation, they are called codons.
Each segment of DNA has many ways it can be read (reading frames) and many proteins are likewise encoded on a double stranded piece of DNA - which can be read backwards or forwards, and parts of a code can similarly have other proteins encoded within it.