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

Given below are two statements:
Statement $I$: $Bt$ toxins are insect group specific and coded by a gene $cry$ $IAc$.
Statement $II$: $Bt$ toxin exists as inactive protoxin in $B. \text{ thuringiensis}$. However, after ingestion by the insect, the inactive protoxin gets converted into active form due to alkaline $pH$ of the insect gut.
In the light of the above statements, choose the correct answer from the options given below:

Give information about pest-resistant plants. Explain $RNA$ interference.

Golden rice will help in $:-$

Select the appropriate option for $RNAi$.

Golden rice is a promising transgenic crop. When released for cultivation,it will help in