Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because:

Toxin is inactive

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Toxin is immature

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Bacteria are resistant to the toxin

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Bacteria enclose toxin in a special sac

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Solution

The correct option is A Toxin is inactive
Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because toxin is secreted in inactive form which gets activated in alkaline conditions of the gut of gallworms.

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Similar questions

Crystals of Bt-toxin produced by some bacteria do not kill the bacteria themselves because:

(a) bacteria are resistant to the toxin

(b) toxin is immature

(d) bacteria encloses toxin in a special sac

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