Well one way you could do it is by saying 'if I have this one base pair difference then this sequence is going to be cut by a specific restriction enzyme that recognizes the sequence CTGAGGA'.
City continue to lead the table on 63 points, with United still breathing down their necks in second after veteran pair Paul Scholes and Ryan Giggs proved the difference against a determined Norwich side.
First, it's important to note that the pair of myTouch devices are identical in componentry and general design, with the major difference being that the myTouch Q is a bit thicker due to its slideout keyboard.
The two sides needed the play-off after Egypt's 2-0 win over Algeria on Saturday left the pair inseparable at the top of their group - with the same points, the same goal difference, the same number of goals scored and the same head-to-head record.
