Which insects are controlled by $CryIAc$ and $CryIIAb$?

What is the main characteristic observed in $BT$ cotton?

Name any genetically modified crop.

$Bt$ cotton has which of the following special features?

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

According to $NCERT$ text,which Indian plants have either been patented or attempts have been made to patent them by Western nations for their commercial use?
$I.$ Basmati rice
$II.$ Neem
$III.$ Turmeric
$IV.$ Tulsi