The $Bacillus$ $thuringiensis$ $(Bt)$ strain is used for .......

Main objective of production/use of herbicide resistant $GM$ crops is to
$(A)$ -Reduce herbicide accumulation in food articles for health safety.
$(B)$ -Eliminate weeds in the field without the use of herbicides.
$(C)$ -Eliminate weeds from the field without the use of manual labour.
$(D)$ -Soil pollution and biomagnification caused by herbicides.
Which of the following statements are correct?

An improved variety of transgenic basmati rice:

Bacillus thuringiensis forms a protein which is insecticidal. This protein:

$A$ tumor-inducing plasmid widely used in the production of transgenic plants is that of

Which part of the insect's digestive tract is damaged by the $Bt$ toxin?