NEET Biology question

The *Bt* toxin is not toxic to human beings because

(A)The pro-*Bt* toxin activation requires temperature above human body temperature
(B)The *Bt* toxin recognizes only insect specific targets
(C)The pro-*Bt* toxin activation requires pH lower than that present in the human stomach
(D)Conversion of pro-*Bt* toxin to *Bt* toxin takes place only in highly alkaline conditionsCorrect

Answer: (D)

Solution

Because the human stomach is acidic rather than alkaline, the pro-*Bt* toxin never gets converted to its active form within the human digestive

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Question ID VK-125757