Cryopreservation is:

Match the following columns:

Column-$I$	Column-$II$
$(a)$ Pest resistant plant	$(1)$ Transgenic cow
$(b)$ Golden rice	$(2)$ $C$-peptide
$(c)$ Proinsulin	$(3)$ High vitamin $A$ content
$(d)$ Rosie	$(4)$ $RNA$ interference

Match the following pairs correctly and choose the right combination:

Column-$I$	Column-$II$
$A$. Escherichia coli	$1$. Nif gene
$B$. Rhizobium melilotae	$2$. Digesting hydrocarbons of crude oil
$C$. Bacillus thuringiensis	$3$. Production of human insulin
$D$. Pseudomonas putida	$4$. Biological control of fungal disease
-	$5$. Bio-insecticide

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Orchid	$(P)$ Undifferentiated mass of cells
$(2)$ Methylophilus methylotrophus	$(Q)$ Twice the amount of lysine and tryptophan
$(3)$ Callus	$(R)$ High rate of protein production
$(4)$ Hybrid maize	$(S)$ Embryo rescue

Read the following four statements and identify the two incorrect statements:
$(1)$ The first transgenic buffalo,Rosie,produced milk enriched with human alpha-lactalbumin.
$(2)$ $DNA$ is isolated from large molecules using restriction enzymes.
$(3)$ Downstream processing is a stage of $r$-$DNA$ technology.
$(4)$ Disarmed pathogen vectors are also used to transfer $r$-$DNA$ into the host.

Identify the mismatched pair.