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Biology · 2023 · 1 mark
Biotechnology and its ApplicationsBiotechnological Applications in Agriculture1 markRememberassertion reason
CBSE 2023 · Region 1 · Set 2 · Q13
Assertion (A): Crystal protein Bt toxin does not kill the Bacillus but kills the insects. Reason (R): Bt toxin exists in inactive form in Bacillus…
Assertion (A) : Crystal protein Bt toxin does not kill the Bacillus but kills the insects.
Reason (R) : Bt toxin exists in inactive form in Bacillus but when ingested by the insect, the acidic pH of its gut changes it into an active form.
Official answer
(C)
Assertion (A) is true, but Reason (R) is false.
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CBSE Class 12 Biology past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.