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GCSE Biology · key term
A soil bacterium from which genes coding for insecticidal proteins can be transferred into crop plants.
Used by Edexcel
Specification 4.12B · Paper 1
Revise: GM OrganismsBacillus thuringiensis, usually shortened to Bt, is a bacterium that produces insecticidal proteins. Scientists can introduce a gene from Bt into crop-plant cells. Successfully modified cells are then used to produce plants containing the inserted gene.
Name the source correctly: the insect-resistance gene comes from the bacterium Bacillus thuringiensis (Bt). Do not describe Bt as an insecticide or a crop.
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