neet ug 2022

Which of the following correctly describes the biochemical nature of Bt toxins? (A) intracellular polysaccharides (B) intracellular crystalline proteins (C) extracellular crystalline proteins (D) intracellular lipids

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Which enzymes helps to link an antibiotic resistance gene with the plasmid vector? (A) Exonucleases (B) DNA polymerase (C) DNA ligase (D) Endonucleases

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Which of the following enzyme is NOT used while isolating DNA from plant cells? (A) Cellulase (B) Protease (C) Deoxyribonuclease (D) Ribonuclease

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Which of the following correctly describes the condition required for activation of pro-Bt toxin in the gut of insect larvae? (A) Acidic medium in the foregut (B) Neutral medium in the hindgut (C) Alkaline medium in the foregut (D) Alkaline medium in the midgut

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