Which of the following statements is correct | vedclass

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Question

(A) $1$. $Bt$ toxin is produced by the bacterium $Bacillus$ $thuringiensis$ as an inactive protoxin.$2$. When an insect ingests this inactive protoxin

Vedclass · Accepted Answer

The inactive protoxin is converted into an active form in the insect's digestive tract.

Vedclass · Answer

(A) $1$. $Bt$ toxin is produced by the bacterium $Bacillus$ $thuringiensis$ as an inactive protoxin.$2$. When an insect ingests this inactive protoxin,the alkaline $pH$ of the insect's gut solubilizes the crystals and converts the protoxin into its active form.$3$. The active toxin then binds to the surface of midgut epithelial cells,creating pores that cause cell swelling and lysis,eventually leading to the death of the insect.$4$. Therefore,statement $A$ is correct.

Which of the following statements is correct regarding $Bt$ toxin?

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Which one of the following is a correct statement?

$Bt$ toxin genes have been expressed in plants to provide resistance against:
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Choose the correct option.

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