$RNAi$ stands for .........

Consider the following statements about the responsibility of $GEAC$ (set up by the Indian Government):
$I$. $GEAC$ makes decisions regarding the validity of $GM$ research.
$II$. It checks the safety of introducing $GM$ organisms for public services for their large-scale use.
Which of the statements given above is/are correct?

In $RNAi$,genes are silenced using

Basmati is unique for its aroma and flavour,whose $A$ varieties are cultivated in $B$. Here $A$ and $B$ refer to:

The toxic component of $Bacillus$ $thuringiensis$ is:

Which part of the tobacco plant is infected by $Meloidogyne \ incognita$?