NEET 2009 Biology question

Which one of the following is commonly used in transfer of foreign DNA into crop plants?

(1)Meloidogyne incognita
(2)Agrobacterium tumefaciensCorrect
(3)Penicillium expansum
(4)Trichoderma harzianum

Answer: (2)

Solution

*Agrobacterium tumefaciens*, a soil bacterium that naturally causes crown gall disease in dicots, transfers a segment (T-DNA) of its Ti (tumour-inducing) plasmid into the plant genome. After disarming (removing the tumour genes) the Ti plasmid is used as a vector to deliver

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Question ID VK-090192