The genetically-modified $(GM)$ brinjal in India has been developed for:

Which of the following, when consumed as food, can prevent night blindness caused by Vitamin $A$ deficiency?

The destruction of $50\%$ of maize plants in the $USA$ in $1970$ was due to an infection by:

Given below are $2$ statements: one is labelled as Assertion $(A)$ and other is labelled as Reason $(R)$.
Assertion $(A) :-$ Toxic insecticidal protein of Bacillus thuringiensis does not kill Bacillus itself.
Reason $(R) :-$ In Bacillus,$Bt$ toxin protein exists as inactive protoxins.
Correct answer from the options given below :

The introduction of genetically engineered crops is not desirable because ..........

Which of the following is a transgenic crop developed to tolerate herbicides?