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Why are the spores of Bacillus thuringie...

Why are the spores of Bacillus thuringiensis used as bioinsecticide?

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**Step-by-Step Solution:** 1. **Introduction to Bacillus thuringiensis (Bt)**: Bacillus thuringiensis is a bacterium known for its ability to produce a specific toxin, referred to as Bt toxin. This bacterium is naturally occurring and is found in soil. 2. **Production of Bt Toxin**: The bacterium produces the Bt toxin in an inactive form. This toxin is effective against certain insect pests that feed on plants. 3. **Genetic Engineering of Plants**: The gene responsible for producing the Bt toxin is extracted from Bacillus thuringiensis. This gene is then inserted into the genome of specific crop plants through genetic engineering techniques. ...
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Consider the following statements. I) Bt toxin gene has been cloned from the bacteria. II) Genetic engineering works only on animals and has not yet been successfully used on plants. III) Strains of Bacillus thuringiensis are used in producing bioinsecticidal plants. Which of the statements given above are correct?

which of the following statement is correct ? A. Single cell protein is rich in high quality proteins bit poor in fat B. BOD is the amount of oxygen that would be consumed if all the inroganic matter in one litre of water were oxidised by bacteria . C. Trichoderma sp are free living fungi that are effictive biocontrol agents of several pathogens. D. Bacillus thuingiensis are pathogens that attack insects and other arthrpods . E. Bacillus thuringiensis is first used biopesticide. F. Lactose enzyme is used in alcoholic fermentation . G. Mycorrhiza is a symbiotic associtation between fungi e.g. Glomus and vascular plant .

How are Baculoviruses and Bacillus thuringiensis use as bio-control agents? Why are they preferred over readily available chemical pesticides?