Question

The bacterium Bacillus thuringiensis is widely used in contemporary biology as a/an

• A. Indicator of water pollution
• B. Insecticide
• C. Agent for production of dairy products
• D. Source of industrial enzyme

Answer 1

Answer: (B)

Insecticide

Bacillus thuringiensis produces a natural insecticide that has been used for decades by organic farmers to control crop-eating insects and by the World Health Organization to kill mosquitoes without using dangerous chemical pesticides. Bacillus thuringiensis also occurs naturally in the gut of caterpillars of various types of moths and butterflies.
Therefore, the correct answer is option B.