$RNA$ interference takes place in all eukaryotic organisms as a method of cellular defense. This method involves silencing of a specific $mRNA$ due to a . . . . . . .

Transgenic plants are produced by $......$.

Which of the following is true for Golden rice?

An improved variety of transgenic basmati rice:

$A$: $Bt$ toxin are protein crystals containing insecticidal protein.
$R$: $B. \text{ thuringiensis}$ forms these protein crystals throughout continuously during their growth period.

In which of the following fields is biotechnology used?
$I -$ Therapeutics $\quad$ $II -$ Diagnostics
$III -$ Genetically modified crops $\quad$ $IV -$ Traditional hybridization
$V -$ Nutritionally enhanced foods $\quad$ $VI -$ Bioremediation
$VII -$ Waste treatment $\quad$ $VIII -$ Animal poaching
$IX -$ Energy production