AIIMS 2018 Zoology Bt Crops MCQ Question
Assertion: Plants having gene from Bacillus thuringiensis are resistant to insects
Reason: These transgenic plants have receptors which convert protoxin into active toxin.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not correct explanation of A
A is true but R is false
A and R are false
Correct Answer
Detailed Explanation
Option C is correct because it highlights the role of the Bt toxin gene, which encodes for a protein that is toxic to specific insect pests, thereby providing plants with built-in insect resistance. This gene, derived from Bacillus thuringiensis, allows for the expression of insecticidal proteins in transgenic plants, reducing the reliance on chemical insecticides. Other options are not relevant as they do not provide information related to the mechanism of action of the Bt toxin or its application in agricultural biotechnology. Understanding the function of the Bt toxin is crucial for appreciating its role in integrated pest management and sustainable agriculture.
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