NEET 2012 Biology question

Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells).

(1)A toxic protein
(2)Both sense and anti-sense RNACorrect
(3)A particular hormone
(4)An antifeedant

Answer: (2)

Solution

Nematode (*Meloidegyne incognitia*) infection of tobacco roots was prevented using RNA interference (RNAi). Using Agrobacterium vectors, DNA was introduced into the host cells so that it produced both sense and anti-sense RNA of a nematode-specific gene. These two

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Question ID VK-091011