Special report: Food under the microscope
BBC News Online presents a guide to one of the most complex and diverse issues of the day.

Genetically-modified Q&A
BBC News Online answers your questions about genetically-modified crops and foods.

The power of genes
It is difficult to think of another technology that has caused as much debate or concern as that of genetic engineering and its application to food - nuclear power apart.

Better test for GM foods
A new test may make it easier to detect genetically-modified ingredients in processed foods.

Perils of far-flung pollen
Pollen from GM crops can travel very long distances - but there are ways to minimise the risks of its genes "leaking" into the wider environment.

Hard won profits
Genetically-modified food is making big headlines, but most biotech firms still make a loss and the number of GM food products on the market is still small.

GM food: Head to head
Environmental campaigners Greenpeace argue the pros and cons of GM food with biotech company AgrEvo.

Friend or foe?
GM crops might damage the environment - they could also provide the solutions to many of the problems we now face in the countryside.

GM food: A political hot potato
Whilst the UK government is convinced of the benefits of GM foods, its political opponents are calling for tougher measures to control the new technology.

Prince Charles speaks out against GM food
The Prince of Wales lays out his objections to a technology he says is "meddling with the building blocks of life".

GM links
The Web is alive with links on genetic engineering in general and the modification of food in particular. Here are just a few of the sites currently on offer.