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Producing GM crops using Agrobacterium Tumefaciens
Herbicides are used to kill weeds which prevent plants from growing. However, herbicides can harm the crop too. Using
genetic engineering we can transfer genes from naturally herbicide resistant plants into normal crops to increase crop
yields. Agrobacterium Tumefaciens lives in the soil and can be used to transfer such genes into plant cells (N.B.
Agrobacterium Tumefaciens is used as a vector and does not naturally contain the gene). The Ti plasmid in the bacterium infects
the plant and will cause crown gall (a cancerous lump) formation. Pieces cut from this lump and cultured will develop into
plantlets containing the desirable gene.