Last updated at 12:14 BST, Thursday, 07 August 2014

Purple tomatoes

A purple tomato

Would you eat a tomato this colour?

Would you eat a purple tomato? What if it had health benefits? Scientists have developed one that could be on our shop shelves soon.

This is the latest example of genetically modified food - food that has been changed from its natural form. There are many reasons for growing GM food, and Rob and Finn discuss some of them in the programme.

They also explain some vocabulary related to growing these 'artificial' crops.

This week's question:

When was the first genetically modified food first sold commercially? Was it in:

a) 1974

b) 1984

c) 1994

Listen to the programme to find out the answer.

Listen

Purple tomatoes

End of Section

Vocabulary

artificial

made by people, copying something made in nature

genetically modified

having its genetic structure changed for a particular purpose (sometime shortened to GM)

genes

parts of the DNA in a cell that control the physical development or characteristics of an individual plant or animal

resist

fight against

pests

insects or small animals that damage crops

cultivated

developed to be grown on farms

pigment

natural substance that gives colour

antioxidant

a natural chemical that slows down the decaying process

significant

important or noticeable

affordable

not expensive

distrust

not trusting or believing someone or something

ripening

becoming fully grown or ready for eating

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