The transgenic food crop which may help in solving the problem of night blindness in developing countries is . . . . . . .

Which genetically modified food crop is useful in preventing blindness, which is highly prevalent in developing countries?

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

Select the correct option for the following:
$I - CryIAc \quad II - CryIAb \quad III - CryIIAb$
Control of Cotton Bollworms $\quad$ Control of Corn Borer

In $Bt$ cotton,the $Bt$ toxin present in plant tissue as protoxin is converted into active toxin due to

Statement-$A$: At present,about $30$ recombinant therapeutics have been approved for human use the world over.
Statement-$B$: $27$ documented varieties of Basmati rice are grown in India.