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David Gregory-Kumar discusses the still-controversial issue of genetic modification in agriculture with guests from each side of the debate. Professor Mike Bevan is a biochemist working at the John Innes Centre in Norfolk. His work includes identifying genes for use in agriculture, for example to increase seed size and seed yields. Liz O'Neill is director of GM Freeze, a not for profit campaign group concerned about the speed at which genetic modification is being introduced into food and farming.
And Martin Humphrey is sales director at Humphreys Feeds, a leading independent specialist poultry feed supplier in the South of England. He also a member of the British Free Range Egg Producers Association.
Produced by Sally Challoner.