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Applications in agriculture: GMOs, Bt crops

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Every question from past board papers on Applications in agriculture: GMOs, Bt crops, newest paper first. Open any question for its full worked answer.

NEET UG 2025 question paper (official, booklet 45)

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  1. Silencing of specific mRNA is possible via RNAi because of -

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NEET UG 2024 question paper (official, booklet S6)

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  1. Given below are two statements:

    Statement I : Bt toxins are insect group specific and coded by a gene cry IAc.

    Statement II : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut.

    In the light of the above statements, choose the correct answer from the options given below:

    4 marks · See worked answer →

NEET UG 2020 question paper (official, booklet E1)

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  1. Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to :

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NEET UG 2019 question paper (official, booklet P1)

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  1. Which of the following is true for Golden rice ?

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  2. What triggers activation of protoxin to active Bt toxin of \(\textit{Bacillus thuringiensis}\) in boll worm ?

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NEET UG 2016 Phase 1 question paper (official, booklet A)

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  1. Which part of the tobacco plant is infected by *Meloidogyne incognita* ?

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