Name any genetically modified crop.

Agriculture production increased several times after the introduction of $DDT$.

The process of $RNA$ interference is used to protect plants from which of the following?

The transgenic bacterium useful for cleaning up oil spills is-

Silencing of a gene could be achieved through the use of

Consider the following statements:
$I$. Flavr Savr is a genetically modified tomato,which remains fresh and retains its flavour much longer than the normal tomato due to the blocking of the synthesis of the fruit-softening enzyme polygalacturonase.
$II$. Recently,the $US$ government has patented the Indian 'basmati' rice as Rice-tec.
$III$. Viruses,bacteria,and some other harmful organisms can be used as bioweapons in biological warfare.
Which of the statements given above are correct?