Question

The bacterium Bacillus thuringiensis is widely used in contemporary biology as

• A. indicator of water pollution
• B. source of industrial enzyme
• C. agent of production of dairy products
• D. insecticide

Answer 1

The correct option is D

insecticide

The correct option is D

Explanation of the correct option:

1. Bacillus thuringiensis is a naturally occurring soil-borne bacteria that has been used to control insects since the 1950s.
2. It is made up of a spore, which gives it resolution, as well as a protein crystal, which is extremely poisonous.
3. The harmful protein varies depending on the Bt subspecies that produce it.
4. Bt continues to be effective against cabbage worms, tent caterpillars, potato beetles, mosquitoes, black flies, and a variety of other insect pests, depending on which strain is employed.

Final answer: The bacterium Bacillus thuringiensis is widely used in contemporary biology as insecticide.