Bt Cotton is a genetically modified crop with a foreign gene from

Bt Cotton is a genetically modified crop with a foreign gene from

Bacillus thermolactis
Bacillus thuringiensis
Bacillus thermophilus
Bacillus tequilensis
This question was previously asked in
UPSC Geoscientist – 2023
The correct answer is Bacillus thuringiensis.
Bt Cotton is a genetically modified organism (GMO) that incorporates a gene from the soil bacterium *Bacillus thuringiensis* (Bt). This gene produces a protein toxin that is lethal to certain insect pests, particularly lepidopterans (like bollworms).
The Bt toxin is crystalline and requires alkaline conditions found in the gut of target insects to become active. It binds to receptors in the insect gut, causing pores and eventually leading to death. It is generally harmless to humans and other animals.