Iceland's Technical Manager Trish Twohig said she was "sorry" that contaminated meat was found in the supermarket's burgers and that they were "extremely disappointed" by the situation.
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The controversial procedure involved nuclear DNA from the mother, mitochondrial DNA from a donor, and the father's sperm.
The move comes amid a boycott of the paper in Liverpool due to its controversial coverage of the 1989 Hillsborough disaster.
Glasgow East MP Natalie McGarry has been charged in connection with alleged fraud offences.