Question

Which one of the following bacteria are used to produce insect resistant transgenic cotton?

Options

• Bacillus thuringiensis

• Bacillus haemophilus

• Helicobacter pyroli

• Agrobacterium tumefaciens

Answer 1

Bacillus thuringiensis

Explanation:

This bacterium produces specific Bt toxin proteins that are lethal to certain insect pests like bollworms. Scientists incorporate the genes for these toxins into the cotton plant’s genome, creating “Bt Cotton”, which is naturally resistant to insect attacks.